Banker Bart Hughes is working hard on his promotion in the merciless business jungle of Wall Street.
While his wife and son are out of town for a holiday, he is left alone in their beautifully renovated building to quietly finish his project.
But then an intruder suddenly shows up, a rat, who drives him to the edge of madness.
Peter Weller (Robocop, Odyssey 5) plays the role of Bart in this oppressive, blood-curdling thriller from director George P. Cosmatos (Tombstone, Cobra), who won the prizes for Best Film and Actor at the Paris International Film Festival Awards (1983).
Of Unknown Origin makes us witness the titanic battle between man and animal in a brilliant and compelling way, a deadly duel between the slowly going mad Bart and his shrewd, stubborn opponent.
A film that leaves you with a nagging feeling.

Director: George P. Cosmatos
Screenplay: Chauncey G. Parker III, Brian Taggert
Year: 1983
Playing time: 89 minutes
Cast: Peter Weller, Jennifer Dale, Lawrence Dane, Kenneth Welsh, Louis Del Grande, Shannon Tweed