O, what can ail thee, knight at arms, Alone and palely loitering; The sedge has withered from the lake, And no birds sing. O, what can ail thee, knight at arms, So haggard and so woe-begone?

"Taking its title from John Keats’s early 19th-century poem, this highly personal melodrama finds Dulac interrogating the archetype of the femme fatale. La belle dame sans merci follows a famous ...