This is a very light spy film about two beautiful agents who try to crack a murder case and end up looking for a formula for creating human clones.
Diana (Janine Reynaud) and Regina (the luscious Rosanna Yanni) are the agents knows as "The Red Lips". They get into some very comedic and very serious situations during the course of their investigations.
One might be surprised at the tame level this film has considering it's a Jess Franco film. Some brief nudity and a smidgen of violence are included, but it is by no means what Franco did in some of his later films.
This is what I call good fun, and with the beautiful women on display it makes for a good viewing experience.