Missing Pieces (1992)

Director: Leonard B. Stern

Cast: Eric Idle, Robert Wuhl, Bob Gunton, Lauren Hutton

As sole heir to a relative's estate, Wendel is surprised to learn that the only thing he's been left is a riddle. However, he and his musician friend, Lou, are soon thrust into a comic chase, as an assortment of unsavoury characters, underworld figures, and even private investigators, are after them for the inheritance - and they don't know what it is!