Based on a novella by D.H. Lawrence, this drama concerns Jill (Sandy Dennis) and Ellen (Anne Heywood), a lesbian couple who live in a remote, snowbound cabin. While Ellen dominates the relationship, she has also grown dissatisfied and is no longer sure she wants to stay with Jill. When Paul (Keir Dullea), a handsome stranger, happens by, the women invite him in. Soon Paul and Ellen are having an affair, which leads to an ugly confrontation among all three. The Fox won a Golden Globe Award as Best English Language Foreign Film of 1968 (it was made in Canada). Originally rated R in 1968, it was re-edited and rated PG in 1973.
~ Mark Deming, All Movie Guide