A mysterious blonde woman kills one of a psychiatrist's patients, and then goes after the high-class call girl who witnessed the murder.
A Harvard scientist conducts experiments on himself with a hallucinatory drug and an isolation chamber that may be causing him to regress genetically.
When a young boy's family is killed by the mob, their tough neighbor Gloria becomes his reluctant guardian. In possession of a book that the gangsters want, the pair go on the run in New York.