A circus barker stages a sensational new act, the world's longest fast undertaken by “Sapolio”, on view in a glass cage. But this act also results in several murders, a kidnapping, and a poisoning!
John Ireland
as Pel Pelham
Honor Blackman
as Jenny Pelham
Geoffrey Keen
as Harry Stanton
Eric Pohlmann
as Henri Sapolio
Sid James
as Tony Lewis
Liam Redmond
as Inspector Lindley
Tonia Bern
as Rena Maroni
Sydney Tafler
as Rorke
Ferdy Mayne
as Bertie
Valerie Vernon
as Bella
Anthony Richmond
as Peter Pelham
Nora Gordon
as Marie Sapolio
