The great Sybil Danning burns up the screen as the super-hot and super-voluptuous professor Diane Stevens in this slice of fun, sexploitation junk. Diane is married to Michael (Andrew Prine) who is in line to inherit a fortune when his elderly mother Lillian (K. T. Stevens) dies. Impatient to get their hands on the money Diane and Michael conceive a plan that sees Diane seduce geeky student Jay (Eric Brown) in order to persuade him to go to Lillian's mansion to scare the old dear. Unfortunately Lillian is brutally murdered and it looks as if Jay has been framed to take the fall. Written by director Howard Avedis and co-writer Marlene Schmidt, "They're Playing With Fire" is a weird amalgam of teen sexploitation and psychological thriller. The murder story is engaging enough but it lacks any real logic, with the final reveal of the killer offering a real "huh?" moment. Avedis moves things along at a decent clip, throws in a few nasty murders and delivers a few raunchy soft core romps. The film looks nice enough thanks to bright, competent cinematography by Gary Graver and has a decent rocking score courtesy of John Cacavas. There is only one reason to see this film, however, and that is the statuesque Sybil Danning, who looks amazing throughout and happily strips to reveal her stunning body at regular intervals. Danning's splendid turn makes this a must-see slice of cheesy sexploitation kitsch. ( )