As psychological thrillers go, this low budget effort isn't bad; certainly it doesn't lack for originality. Sarah is a medical professional and harassed single mother. She spends her working day visiting seriously ill patients in their own homes until one day her daughter is snatched. Before she can take meaningful action, she receives a phone call from the kidnapper. Call the police and the girl dies. As Mr X is clearly not a sexual predator, the obvious question is what is his motive, like what could he possibly want with her?
The answer is that he is not interested in Sarah but in one of her patients, a mystery man living under a false name. There are strange men watching the house, so is this guy in witness protection? Not quite, he was convicted of killing a young girl who, surprise, surprise, was about the same age as Sarah's daughter. His conviction was quashed on a technicality, so the question is, did he or didn't he? The kidnapper wants revenge, an eye for an eye, but like the man said, that leaves us all blind, and two wrongs...
So what happens? Redemption of sorts. Don't expect any thrills with a capital T, but don't believe the bad reviews either.