Mild-mannered mystery writer D. H. Mercer has become so immersed in his material that his creation, hard-boiled private eye Biff Deegan, constantly appears to him as a hallucination. Intent on getting rid of Biff, and replacing him with a more civilized detective, Mercer soon finds himself in a genuine mystery involving art fraud, murder, and a beautiful lady in peril.
Robert Hays
D.H. 'Hank' Mercer / Biff Deegan
Catherine Mary Stewart
Marissa
Christopher Murney
Lt. Greenberg
Fred Gwynne
Victor Greville
Celeste Holm
Claire
Martin Neufeld
Pete
Michael Copeman
Eric Keenleyside
Robin Ward
Louis Di Bianco
Marc Gomes
Lynne Cormack
Lynne Gorman
Jacques Sandulescu
Timothy (uncredited)
Lewis J. Stadlen
Norman Wagstaff (uncredited)
