The film is also notable for its practical effects. In an era predating the ubiquity of CGI in low-budget cinema, the transformation sequences of the aliens—while dated by modern standards—possess a tactile quality that modern digital effects often lack. The "frozen" makeup effects on the victims are a highlight, creating a distinct visual signature for the film.
The film is frequently compared to the 1995 sci-fi thriller Species due to its central premise of predatory alien women. decoys 2004 isaidub