

Evil alien in a trenchcoat. 36 minutes. Zero budget, maximum nightmare fuel.
A group of Japanese scientists are stalked and viciously butchered by a creepy alien in a trenchcoat.
Practical Effects
Glorious homemade gore that puts million-dollar CGI to shame.
Production
Shot-on-video grime that feels accidentally illegal.
Director
Akihiro Kashima
Trivia, insights & behind the scenes
V-cinema (direct-to-video Japanese films) in the 80s became a playground for gorehounds escaping studio censorship—Biotherapy is pure underground survival.
Director Akihiro Kashima reportedly shot this in a single location over one weekend with borrowed equipment and effects built from hardware store scraps.