A one-handed madman (he lost the hand while escaping a hanging) uses various detachable devices as murder weapons to gain revenge on those he believes have wronged him.
Patrick O'Neal
as Jason Cravatte
Cesare Danova
as Anthony Draco
Wilfrid Hyde-White
as Harold Blount
Laura Devon
as Marie Champlain
Wayne Rogers
as Police Sgt. Jim Albertson
Suzy Parker
as Barbara Dixon
Jeanette Nolan
as Mrs. Ewing Perryman
Barbro Hedström
as Florabell
William Conrad
as Narrator
Tony Curtis
as Mr. Julian
Annazette Chase
as Prudence
Inger Stratton
as Gloria
