Contagion is a 1987 Australian horror film directed by Karl Zwicky and starring John Doyle, Nicola Bartlett and Ray Barrett.

[1] Mark, a naive real estate agent, is asked by his boss to travel to Crompton for a job.

Along the road, Mark sees a beautiful woman being sexually abused by crazies that live in the bush, and he stops to aid her.

He makes an escape and in the forest finds his way to a nearby mansion where he is given a welcome by millionaire Roderick Bael and Cleo and Helen, two seductive girls who live with him.

Mark then returns to his girlfriend Cheryl changed, demanding all their savings to invest with Bael and acting violent with her, while also killing his bosses.