The rich and respected London doctor Roger Mills has invited six of his best friends onto his boat on the Thames - he won't survive the trip.
Charles Regnier
as Peter Finbow
Axel von Ambesser
as Ian Capel
Hannelore Elsner
as Avice Lorring
Giulia Follina
as Tonia Gilmour
Volkert Kraeft
as William Garnett
Jochen Busse
as Christopher Tarrent
Lina Carstens
as Elisabeth Tufts
Carlos Werner
as Roger Mills
Gerd Baltus
as Sergeant Birrell
Axel Scholtz
as Sergeant Frazer
Wolfgang Weiser
as Dr. Parfitt
Oswald Döpke
as Professor Boothby
