Two Undercover Angels, also known as Red Lips, is a 1969 Spanish-Italian comedy thriller directed by Jess Franco. The film follows two female detectives, Diana (Janine Reynaud) and Regina (Rosanna Yanni), who are tasked with investigating the disappearances of models and dancers in a hip nightclub owned by Klaus Thriller (Adrian Hoven).
As the investigation progresses, Diana and Regina uncover Klaus Thriller's dark secrets, including his involvement in a cult and his use of his werewolf-like assistant, Morpho (Michel Lemoine), to carry out his killings. The detectives must navigate a twisted web of lies and danger as they try to bring the perpetrators to justice.
Throughout the film, there are many comedic scenes that add levity to the otherwise tense thriller. The film also features a catchy pop soundtrack by a fictional band called Los Albas, who perform the hit song "Red Lips."
Two Undercover Angels received mixed reviews upon its release, with some critics praising its campy humor and vibrant aesthetic, while others criticized its uneven pacing and convoluted plot. However, the film has since gained a cult following among fans of Eurospy and exploitation cinema.