Quote:A police detective confronts a nurse with an unusual bedside manner and her chilling twin sister in Andrew Neiderman's page-turning thriller

Palm Springs detective Frankie Samuels is on medical leave when a rash of suspicious suicides rock his town. Against the advice of his doctor and his supervisor, he investigates the case of a grieving widower who died of insulin shock, overdosing on his wife's meds, along with a sleep aid called Dilantin. But the police can't find any Dilantin in the man's medicine cabinet. The second victim, another surviving spouse, perishes from a lethal dose of chloral hydrate.

Private-duty nurse Faye Sullivan seems to be the common denominator in the deaths. But Faye has a sister: an identical twin named Susie, who also has a connection to the victims. As Samuels discovers more clues that don't add up, his suspicion begins to fall decisively on the two women. But the truth is more terrifying-and deadly-than he can imagine.