The playwright Eugene O’Neill died in 1953. In 1956, his four-act family drama, Long Day’s Journey Into Night, was published posthumously. Although O’Neill won the 1936 Nobel Prize in Literature for his body of work, Long Day’s Journey Into Night is largely accepted as his greatest achievement. It moves from morning to midnight at a summer home in Connecticut—Monte Cristo Cottage—and concerns four characters who are partly based on O’Neill, his parents, and his brother. Long Day’s Journey Into Night is a family drama, and its themes of loss, addiction, and forgiveness inspire impassioned, poetic performance. Since its Broadway premiere, in 1957, the play’s roles have been career landmarks for actors and actresses. Starring in this West End revival at Wyndham’s Theatre, we now have Brian Cox, Laurie Kynaston, Patricia Clarkson, and Daryl McCormack. —Jack Sullivan