Creepshow

Prologue[edit]
A young boy named Billy gets yelled at and slapped by his father, Stan, for reading a horror comic titled Creepshow. Stan reminds his wife that he had to be hard on Billy because he does not want their son to be reading such "crap". As Billy sits upstairs cursing his father with hopes of him rotting in Hell, he hears a sound at the window, which turns out to be a ghostly apparition in the form of The Creep from the comic book, beckoning him to come closer.
Father's Day[edit]
(First story, written by King specifically for the film) Nathan Grantham, the miserly old patriarch of a family whose fortune was made through bootlegging, fraud, extortion, and murder-for-hire, is killed on Father's Day by his long-suffering spinster daughter Bedelia. Bedelia was already unstable as the result of a lifetime spent putting up with her father's incessant demands and emotional abuse, which culminated in his orchestrating the murder of her sweetheart, Peter.
The sequence begins in 1980, when the remainder of Nathan's descendantsâincluding Nathan's granddaughter Sylvia, his great-grandchildren Richard, Cass, and Cass' husband Hankâget together for their annual dinner on the third Sunday in June.
Bedelia, who typically arrives later than the others, stops in the cemetery outside the family house to lay a flower at the grave site and drunkenly reminisce about how she murdered her insufferable, overbearing father. When she accidentally spills her whiskey bottle in front of the headstone, it seems to have a reanimating effect on the mortal remains interred below. Suddenly, Nathan's putrefied, maggot-infested corpse emerges from the burial plot in the form of a revenant who has come back to claim the Father's Day cake he never got. Grantham slowly avenges himself on Bedelia and the rest of his idle, scheming, money-grubbing heirs, killing them off one by one (which includes some apparent supernatural abilities such as making a heavy tombstone move by will) before finally attaining his Father's Day cake, topped with Sylvia's severed head.
The Lonesome Death of Jordy Verrill[edit]
Based on the short story "Weeds". Jordy Verrill (played by Stephen King himself), a dimwitted backwoods yokel, thinks that a newly discovered meteorite will provide enough money from the local college to pay off his $200 bank loan. As the meteorite is too hot to touch, he douses it with water, causing it to crack open and spew a glowing green substance that comes into contact with his skin. He then finds himself being overcome by a rapidly spreading plant-like organism that begins growing on his body. Jordy is eventually cautioned by the ghost of his father not to take a bath. But when the itching from the growth on his skin becomes unbearable, Jordy succumbs to temptation and collapses into the bathwater. By the next morning, Jordy and his farm have been completely covered with dense layers of the hideous alien vegetation. In despair, he reaches for a shotgun and blows the top of his head off, thus killing himself. A radio weather forecast announces that heavy rains are predicted and the audience is left with the dire expectation that this will accelerate the spread of the extraterrestrial plant growth to surrounding areas.
Something to Tide You Over[edit]
Richard Vickers, a vicious, wealthy psychopath whose jocularity belies his cold-blooded murderousness, stages a terrible fate for his unfaithful wife, Becky, and her lover, Harry Wentworth, by separately luring them out to his secluded beach property and then, at gunpoint, burying them up to their necks below the high tide line. He explains that they have a chance of survivalâif they can hold their breath long enough for the sand to loosen once the seawater covers them, they could break free and escape.
Vickers sets up closed-circuit TV cameras so he can watch them die from the comfort of his well-appointed beach house. However, Richard is in for a surprise of his own when the two lovers he murdered return as a pair of waterlogged, seaweed-covered revenants intent on revenge. He tries to shoot them, but they remind him: "You can't shoot us dead, Richard, because we're already dead!" The final scene reveals that Richard is now the one buried in the beach, facing the approaching tideâ and the sight of two sets of footprints disappearing into the surf. While the tide is rising, he laughs hysterically, his sanity shattered by the experience, and screams: "I can hold my breath for a LOOONG TIME!" The frame freezes into animation and the flipping comic pages stop on the title of the next story, one of the longer entries at nearly 30 minutes.
The Crate[edit]
Based on the short story "The Crate". A college custodian, Mike, drops a quarter and finds a wooden storage crate, hidden under some basement stairs for 147 years. He notifies a college professor, Dexter Stanley, of the find. The two decide to open the crate and it is found to contain an extremely lethal creature[3] resembling a Yeti, or Abominable Snowman, which despite its diminutive size promptly kills and entirely devours Mike, leaving behind only his boot. Escaping, Stanley runs into a graduate student, Charlie Gereson, who is skeptical and investigates. The crate has been moved back under the stairs and Gereson is killed by the creature as he examines the crate. Stanley flees to inform his friend and colleague at the university, the mild-mannered Professor Henry Northrup.
Stanley, now traumatized and hysterical, babbles to Northrup that the deadly monster must be disposed of somehow. Northrup sees the creature as a way to rid himself of his perpetually drunk, obnoxious and emotionally abusive wife, Wilma, whom he often daydreams of killing. He contrives a scheme to lure her near the crate, where the beast does indeed maul and eat her. Northrup secures the beast back inside its crate, then drops it into a nearby lake, where it sinks to the bottom. He returns to assure Stanley that the creature is no more. However, it is subsequently revealed to the audience that the beast has escaped from its crate, and is in fact alive and well.
They're Creeping Up on You[edit]
Upson Pratt is a cruel, ruthless businessman whose mysophobia has him living in a hermetically sealed apartment controlled completely with both electric locks and surveillance cameras. During a particularly severe lightning storm, he finds himself looking out over the concrete canyons of New York City, as a rolling blackout travels his way. When it hits his apartment tower, the terror begins for Mr. Pratt, who now finds himself helpless, when his flat becomes overrun by hordes of cockroaches. As the cockroaches begin to overrun him, he locks himself inside a panic room, only to find the cockroaches have already infested the room as well. With no way to escape, he is swarmed upon by the roaches which induce a fatal heart attack. Later, as electricity returns to the building, Pratt's corpse is shown in the panic room, now devoid of roaches. However, Pratt's body soon begins to contort, as roaches grotesquely burst out of his mouth and body, re-enveloping the panic room.
Epilogue[edit]
The following morning, two garbage collectors find the Creepshow comic book in the trash. They look at the ads in the book for X-ray specs and a Charles Atlas bodybuilding course. They also see an advertisement for a voodoo doll, but lament that the order form has already been redeemed. Inside the house, Stan complains of neck pain, which escalates and becomes deadly as Billy repeatedly and gleefully jabs the voodoo doll as he finally gets revenge on his accursed father for his past abuse.

Question: Why was  Billy gets yelled at and slapped by his father?
Answer: For reading a horror comic titled Creepshow.