Grace Jones does not speak a single word in the film. According to Jones, this was her own idea, opting instead to play the role with silent film techniques inspired by Max Schreck in Nosferatu.
The bizarre human-like chair Grace Jones performs her striptease on was made from a body cast of her then-boyfriend Dolph Lundgren.
The song Grace Jones dances to during her dance/stripping scene was sung by her, but it has never been commercially released as it was not included on the movie's soundtrack album. Titled "Vamp" on the credits, Jones released a heavily reworked version titled "Seduction Surrender" on her 1989 album "Bulletproof Heart".
Because of the low budget of the film, Grace Jones turned to her designer friends to loan her the costumes she wore.
In the scene where Grace Jones bites Robert Rusler's neck, the prosthetic teeth went beyond the latex neck and went into Rusler's actual neck, drawing blood. Source: In Search of Darkness: Part II (2020)