Aston(RobertShaw),aquiet,reservedman,livesaloneinatop-floorclutteredroomofasmallabandonedhouseinapoorLondondistrict.HebefriendsandtakesinMacDavies(DonaldPleasence),anoldderelictwhohasbeenfiredfromamenialjobinacafé.IntimeAstonoffershimajobascaretakerofthehouse.Aston'
sbrother,Mick(AlanBates)-ataunting,quasi-sadist...
