Phoenix office worker Marion Crane is fed up with the way life has treated her. She has to meet her lover Sam in lunch breaks, and they cannot get married because Sam has to give most of his money away in alimony. One Friday, Marion is trusted to bank forty thousand dollars by her employer. Seeing the opportunity to take the money and start a new life, Marion leaves town and heads towards Sam's California store. Tired after the long drive and caught in a storm, she gets off the main highway and pulls into the Bates Motel. The motel is managed by a quiet young man called Norman who seems to be dominated by his mother.

Adam Bell is a Toronto area History college professor. He is a rather somber man, largely because he is stuck in a routine, which includes a relationship with his live-in girlfriend, Mary. While watching a rental movie, he spots an actor in a bit part that looks like him. He becomes obsessed with finding out about this double of his. He learns that the actor's stage name is Daniel Saint Claire, whose legal name is Anthony Claire. Claire is a Toronto based actor with only a few on-screen credits, and is married to a woman named Helen who is currently several months pregnant. Adam then becomes obsessed with meeting Claire, who he learns upon first sighting that they look exactly the same, from the facial hair to a scar each has, but Claire who outwardly is more "put together" than Adam. Their lives become intertwined as Claire himself ends up becoming obsessed with Adam, but in a slightly different way.

WL