Halloween (1978) covers one night in Haddonfield, from the moment Michael Myers gets loose to the moment he vanishes again after Laurie Strode survives him. In 1963, at six years old, Michael stabs his older sister to death on Halloween night and is locked away. Fifteen years later, his doctor Sam Loomis goes to move him, but Michael steals a car and escapes.
Loomis follows him to Haddonfield, where Michael has already taken a mask and begun trailing Laurie. She is babysitting young Tommy, while her friend Annie looks after Lindsey down the street, and Lynda plans to meet her boyfriend, Bob. Loomis warns the local sheriff, Brackett, and searches the town.
Michael kills Annie, then Lynda and Bob, and arranges the bodies to frighten Laurie. Laurie goes to check on her friends, finds the bodies and is attacked. She fights back and wounds Michael several times, but he keeps getting up. She gets Tommy and Lindsey to safety and calls for help.
Loomis arrives and shoots Michael, who falls from a balcony. When Loomis looks down, the body is gone, and the film closes on shots of the houses Michael has been through.