
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.
D.H. 'Hank' Mercer / Biff Deegan

Marissa

Lt. Greenberg

Victor Greville

Claire

Nicholas Rubinstein
Pete

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Tony (uncredited)
Timothy (uncredited)

Norman Wagstaff (uncredited)

Roger Delacroix (uncredited)