Darrell Silvera

College town life is turned upside down after a button-down botany professor secretly weds a sizzling nightclub singer.

Joe Adams, a factory worker trapped inside his third-floor apartment after gunning down a mysterious gentleman, reconstructs the events leading up to the shooting through an intricate series of flashbacks.

When Mrs. Tremayne is mysteriously poisoned with gas, ambulance driver Frank Jessup meets her refined but sensuous stepdaughter Diane, who quickly pursues and infatuates him. Under Diane's seductive influence, Frank is soon the Tremayne chauffeur, but he begins to suspect danger under her surface sweetness. When he shows signs of pulling away, Diane schemes to get him in so deep he'll never get out.