 Lawrence lives with and cares for his 19-year-old sister Edie (Margot Bennett), who is brain damaged and has the mind of a child.Edie's brain damage is apparently the result of an accident when she was a little girl and saw her older brother, Lawrence, having sex with an unidentified older woman (possibly their mother, although this is not made clear); she ran away in horror or fear and fell down the stairs.Lawrence is unable to have a normal romantic or sexual relationship due to his guilt over the accident and his duty to look after Edie following the death of their parents.