Q:Build a movie plot around this: Who places a box containing Jack's head in Susan's room? The Killer.
A:
In 1961, an unpopular boy named Harold leaves a Valentine's Day card at the home of Susan Jeremy. Susan and her friend David mock and crumple up the card, prompting an enraged Harold to break into the house, and kill David by hanging him from a hatstand.Nineteen years later, Susan is divorced, has a daughter, and a new boyfriend named Jack. On Valentine's Day, Susan has Jack take her to a hospital to pick up test results, and on the way into the building, she is observed from a window by a man in surgical garb. The man strokes a photograph of a young Susan, and sabotages the elevator Susan boards in order to delay her while he kills the doctor who has her paperwork, which the murderer tampers with. A janitor finds the doctor's body, and has his face dunked into a sink full of acid by the killer.While looking for the doctor, Susan coerces a friendly intern named Harry into getting her results, which Harry notices are abnormal, prompting him to bring them and Susan to Doctor Saxon. The peculiarities of Susan's paperwork (which the murderer further sabotages after killing a pair of laboratory workers) cause Doctors Saxon and Beam to order that she be detained for observation. Harry uncovers evidence suggesting that someone is pulling a "con job" on Susan, but he disappears after promising Susan he will straighten things out. Jack, who had fallen asleep in his car while waiting for Susan, enters the hospital to look for her, and is lured to an empty room, where he is decapitated. The killer places a box containing Jack's head in Susan's room, then replaces it with a cake (identical to one seen in the intro) when Susan goes in search of aid.After Susan tells him about Harry's findings, Saxon goes to look over the copies of her paperwork in the archives, where he is murdered with an axe, an act witnessed by Susan. Susan's claims of there being a killer on the loose are disbelieved, and she is strapped to a gurney after being deemed delirious. The staff prepare to perform emergency surgery on Susan, but are...