Brandywine Productions Ltd.

Close friends Rupert Birkin and Gerald Crich begin romances with siblings Ursula and Gudrun Brangwen. After the couples wed, they take a joint honeymoon to Switzerland, where things begin happily — but they become increasingly complicated as the trip continues. Rupert and Ursula are determined to stay faithful to one another, while the aloof Gerald and the eccentric Gudrun turn to infidelity and sexual exploration.