Millions in diamonds are stolen from a New York City safe, and later the burglar is killed. Shamus is paid $10,000 by the owner to find the diamonds or the killer.

Burt Reynolds
as Shamus McCoy

Dyan Cannon
as Alexis Montaigne

John P. Ryan
as Col. Craig C. Hardcore

Joe Santos
as Lieutenant Promuto

Giorgio Tozzi
as Dottore

Ron Weyand
as E.J. Hume

Larry Block
as Springy

Beeson Carroll
as John Bolton

Kevin Conway
as The Kid

Kay Frye
as Bookstore Girl