When you are caught between the devil and the deep blue sea, the deep blue sea can sometimes look very  appealing, according to the heroine of Terence Rattigan’s 1952 study of obsession and the destructive power of love. In this powerful drama of passion versus loyalty, Hester Collyer, the daughter of a clergyman and wife of a judge, is foundering in the closing stages of a hopeless affair. Freddie Page, her lover, a handsome but shallow ex-Battle of Britain pilot, is out of his depth in their relationship, overwhelmed by the strength of an emotion he is incapable of reciprocating.