An eccentric games inventor dies and leaves behind an inheritance worth hundreds of millions of dollars - which will only be given to the person or team, amongst his family and hired help, who wins a madcap scavenger hunt.

Richard Benjamin
as Stuart Selsome

James Coco
as Henri

Scatman Crothers
as Sam

Ruth Gordon
as Arvilla Droll

Cloris Leachman
as Mildred Carruthers

Cleavon Little
as Jackson

Roddy McDowall
as Jenkins

Robert Morley
as Bernstein

Richard Mulligan
as Marvin Dummitz

Tony Randall
as Henry Motley