 Mary Dwight works as a hostess at the Club Intime run by ruthless gangster Johnny Vanning. When one of her "clients" is murdered prosecutor David Graham questions Mary but she won t cooperate and Vanning is acquitted. When Mary s sister Betty is killed by one of Vanning s thugs she decides to spill the beans and is beaten into disfigurement. At her bedside all the hostesses agree to testify.