Dr. Samuel Hallitt
El terror hace su entrada en el Parque Nacional en forma de oso gris gigante, único en superviviente de una subespecie prehístorica. Para satisfacer su hambre asalta a un grupo desprevenido de excursionistas. Mientras el número de muertes aumenta, se intenta acabar por todos los medios con la carncería y los continuos ataques del animal.
Phil
La detective Sheba Shayne (Pam Grier) vuelve a su Kentucky natal para ayudar a su padre a luchar contra unos mafiosos que lo extorsionan para apoderarse de su negocio.
Dr. Hennings
Cuando la esposa de un ministro es poseída por Eshu, el dios nigeriano de la sexualidad, se llama a un exorcista para ahuyentar al espíritu maligno.
Lt. Robt. Creason
A racist white serial killer known only as "Mac" is wreaking havoc throughout San Francisco while wearing black makeup and an afro wig. Police lieutenant Frank Savage is hot on his trail when Mac begins to reveal his motivations for the killings and escalates their game of cat and mouse.
Pa Townsend
Four girls go on a romping weekend at a lake, and have car problems on the way home. A nice local boy takes them back to his farm, where he lives with his father. Something ghastly happens, but the father helps his son as he has in the past. When the boy meets a girl and begins falling in love, the father worries about a repeat performance.
Dr. Jason Specter / Martine Williams
A young woman is brought to an asylum to receive special treatment from a mysterious doctor. Dr. Spector does more than just run the hospital -- he offers his patients as sacrifices to Satan.