Build a movie plot around this: What does the watch group find after responding to murders? An alien.
A:
In the town of Glenview, Ohio, Evan Trautwig (Ben Stiller) is an active participant in the community and senior manager of the local Costco store. His life is disrupted when the store's night security guard is murdered. The local police have no leads, and show no interest in investigating further. Determined to find the killer and bring him to justice, Evan decides to form a neighborhood watch. However, he only manages to recruit Bob (Vince Vaughn), a construction worker and loving father; Franklin (Jonah Hill), a high school dropout who dreams of being a police officer but failed the written, physical, and mental-health tests; and Jamarcus (Richard Ayoade), a recent divorce.The watch members use the group as an excuse to drink and have fun (much to Evan's annoyance). While driving on patrol, they accidentally hit something. They discover a strange metallic orb that acts as a highly-destructive weapon, and deduce that it is of alien origin. Meanwhile, several more townspeople are mysteriously killed. The watch responds to the murders and encounters an alien, which attacks them. Evan (apparently) kills it with a lawn gnome before the group returns with the creature to Bob's house. The creature regains consciousness and escapes, stealing the metallic orb and warning them that the aliens have already infiltrated the town. The watch theorizes that the aliens are stealing their victims' skin and disguising themselves as humans, so anyone in Glenview could be an alien. Bob confides to Evan that he is worried about his daughter Chelsea (Erin Moriarty), and does not trust her boyfriend Jason (Nicholas Braun). Evan admits that he has been avoiding his wife Abby (Rosemarie DeWitt) because he is infertile, and revealing that to her may cause her to leave.Evan suspects that one of his neighbors is an alien (due to his strange, stiff way of speaking and because he always seems to be watching him). As the watch scouts the neighbor's house, Bob learns that Chelsea is at an unsupervised party with Jason. Bob disobeys...