Four Sided Triangle

Lena returns to her home after many years to discover that her two childhood friends, Bill and Robin, are now scientists and have created a machine that can perfectly duplicate objects. Bill's heart is broken when he realises that Lena loves Robin - until he hits on the mad idea to duplicate Lena in his machine. Featuring Hollywood starlet Barbara Payton, Stephen Murray, and directed by the legendary Terence Fisher, this unsettlingly prescient cautionary tale marks Hammer's first step into the world of science-fiction.