Guess Who Killed My Twelve Lovers?

Guess Who Killed My Twelve Lovers? (1970) is a comedy directed by Wu Chia-Hsiang rated 8.0/10.

Six guitar playing, rock and roll singing and dancing young people on a boating trip are stranded on a rural island off of Hong Kong during a typhoon. They become suspicious of a woman who matches the radio bulletin description of a murderess who killed twelve men. Can she be trusted? Is she laying a trap for a local youth housesitting a mansion?