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
as D.H. 'Hank' Mercer / Biff Deegan
Catherine Mary Stewart
as Marissa
Christopher Murney
as Lt. Greenberg
Fred Gwynne
as Victor Greville
Celeste Holm
as Claire
Jonathan Moore
as Nicholas Rubinstein
Martin Neufeld
as Pete
Michael Copeman
as
Bunty Webb
as
Eric Keenleyside
as
Robin Ward
as
Eric Fink
as
