Downloading Deadly Silence (Deadly Mystery 5)

The hospital says it was an accident. Patience Pendleton says someone is trying to murder her father - but who? Her demented twin, Prudence? Or Farley, the jilted fiancee, who thought he would be marrying money? Or Zack, the queer brother threatened with disinheritance? Or, might it be the ghosts of past evil...?