Several criminal lawyers reunite every year in the Swiss mountains to entertain themselves with fake trials and murder mysteries. At one year's party, an unwitting American becomes part of the game.
George Segal
as Howard Trapp
Trevor Howard
as Gustave Kummer
Robert Morley
as Emile Carpeau
Emlyn Williams
as Bernard Laroque
Alan Webb
as Joseph Pillet
Lesley Dunlop
as Nicole
Brian Croucher
as Pierre
Connie Booth
as Helen Trapp
