Double Death

In an isolated house on the cliffs of north Cornwall the sibling rivalry between identical twins Max and Ashley Hennessy is coming to a murderous climax. They both know one of them must die, but, trapped in his wheelchair, Ashley knows the odds are now against him and he is in mortal danger. Poor Lalla, the twins' aunt, is torn between the two boys: which of them is the victim and which is the psychopath?