Robert Webber is "Christopher Smith," an amnesiac accused of "Hysteria" in this 1965 low budget film directed by Freddie Francis, known mostly for his fine cinematography work. An American wakes up with amnesia in a British hospital after a car accident in which the driver was killed. After working with a psychiatrist (Anthony Newlands) on staff at the hospital, he's released, the doctor unable to do any more for him to regain his memory. His hospital bills have been paid by an unknown benefactor who pays in postal drafts, and this same benefactor has provided him with a place to live. It turns out to be the penthouse of a high-rise. As he tries to sleep, he hears the people next door having terrible fights... except there isn't anyone next door. He also finds a bloody knife in his apartment.
The only clue Chris has to his identity is a magazine photo of a model that was found in the car. He hires a detective (Maurice Denham) to find out who paid his hospital bills and who the woman is but also embarks on his own investigation. He tracks down the photographer of the photo, who tells him the woman is dead from multiple stab wounds. Then he sees the woman drive by him in a car, and she finally shows up at his apartment. She's the wife of the driver and Chris' benefactor. She sets out to help him find out what happened and who he is.
Though this is a low-budget film with very little in the way of production values, it is a completely absorbing film with some fascinating twists and turns.
The actors are all good. Robert Webber was a good-looking character actor who died of Lou Gehrig's disease in 1989 and is probably best-remembered now for playing Cybill Shepherd's father on Moonlighting, though he had a very prolific career. He's very effective in the lead. Maurice Denham is appropriately down and out looking as the detective, and Leila Goldoni is quite beautiful as the model.
Highly recommended for a great story.