While conducting a research experiment intended to bring about an alternative to modern surgery, exhausted Los Angeles surgeon Dr. Daniel Jekyll falls asleep and accidentally inhales the white powders, transforming him into a wildly uninhibited nymphomaniac.
A psychopath escapes from a mental institution and starts a murder spree, which ends in the pursuing of a young handicapped girl, who once got a blood transfusion from him. Blood Song was on the Section 3 Nasties List and was liable for seizure and forfeiture by the police. Re-released as Dream Slayer.