AllMovie

Kay Callard plays Joan Foster, the title role, in the British quickie Undercover Girl. She works in a nightclub that serves as the front for a dope ring. When a reporter is murdered, Joan agrees to help the reporter's brother (Paul Carter) bust up the criminal gang. Naturally, this means putting her own life on the line, but you knew that when you saw the title. If nothing else, Undercover Girl affords ample opportunities to show off attractively undressed chorus girls.