Ken Russell's loose adaptation of the last part of D.H. Lawrence's "The Rainbow" sees impulsive young Ursula coming of age in pastoral England around the time of the Boer War. At school, she is introduced to lovemaking by a bisexual physical education instructress. While experiencing disillusionment in her first career attempt (teaching), she has an affair with a young Army officer, who wants to marry her. Unable to accept a future of domesticity, she breaks with him, and eventually leaves home in search of her destiny. Defying the moral constraints of Victorian England and her parents, a young woman engages in unbridled promiscuity with two partners before setting out to capture the fuller sensuality of life itself. Based on the 1915 novel by D.H. Lawrence.
