Theresa Russell in The Flight Of The Dove (1994)

A beautiful spy trades sex for secrets. A reclusive explosives expert is haunted by a tragic past. When these two meet, the sparks fly... but they have more in common than just a mutual attraction to each other; a covert spy ring wants both of them dead. They devise a shocking plan to outsmart their pursuers... and what began as a sexual encounter escalates into an all out war for their lives. Getting out won't be easy... for The Spy Within.