In this classic British chiller, Stefanie Powers stars as an American graduate student who is writing her thesis on the life of a recently deceased musician. Staying at the composer's home in France with his widow and drug-addicted handicapped son, she stumbles upon his insane twin brother. But can Powers possibly escape once she discovers the truth? With James Olson, Margaretta Scott. 95 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital mono.