By chance the perfume creators Mike and Al produce a scent that makes women go wild for sex. While they desperately try to find the recipe for their product of chance, they use it on random women they meet in the train and fuck their brains out in a hut in the forest. A central problem is to explain their absence from work to wives and colleagues.

A young London couple who have trouble remaining faithful to each other visit Italy, where the husband's cheating ways come to a head when the secret lover of his equally cheating wife turns out to be a potential business partner.