The main subject for this paper is to compare Eugene O’Neill’s play Long day’s journey into night with the Swedish playwright Lars Norén´s Och ge oss skuggorna. Norén´s play is based on a biographical material from O’Neill’s life; therefore I will also compare the play with two biographical analyses on O’Neill. For that I have chosen Doris Alexander’s Eugene O’Neill’s last plays: Separating art from autobiography and Stephen A Black´s Eugene O’Neill: Beyond Mourning and tragedy. The main question in this paper will be: what is the picture of Eugene O´Neill that Norén portrays in the play Och ge oss skuggorna.