Watch How Awful About Allan

A yooung man is in a psychiatric facility suffering from hysterical blindness. After a few months he is released, but only partially cured. He goes home, where his facially disfigured sister lives. His sister then tries to exact revenge against him, as he apparently killed their father by accidentally setting a fire. After his sister tries to set him on fire, she is sent to a mental institution, and his blindness comes back.