In 1993, the Search for Extra Terrestrial Intelligence Project receives a transmission detailing an alien DNA structure, along with instructions on how to splice it with human DNA. The result is Sil, a sensual but deadly creature who can change from a beautiful woman to an armour-plated killing machine in the blink of an eye.

A psychopathic serial killer dumps a bottle of the expensive new perfume ‘Desire’ on each of his female victims. Grace Lantel fears that her new creation might become discredited. She charges her security officer, ex-cop Lauren, to help the police investigating. One of the main suspects is former employee Gordon Lewis, who claims to be the real inventor of the scent. Lauren approaches him undercover… and falls for him, putting herself into deadly danger.