Astonishingly unbelievable (spoilers)
Even by Hollywood's standards ... major spoilers below ...
The film was slickly made, and rife with improbabilities.
The lead-in “affair” might have been convincing enough, but the film “derails” about five minutes into the “thriller” portion. It’s completely unbelievable that Owen would pay the $20K blackmail demand. Who, in that spot, would decide paying 20K makes more sense than going to the police? Simply because a woman you didn’t even sleep with says going to the police is out of the question? Oh, and the fact you’re not wealthy and have a dying daughter with massive medical bills plays no factor?
Further, expecting that payment would end any further demands is completely implausible – but if you think not, then how would the $100K demand fly? Let me get this straight - the psycho already took your $20K, ignoring the first “deal,” so logically you conclude paying him even more money will end it??? On what planet???
Even if you assume the character is completely stupid (within the film, nothing indicates he’s supposed to be dumb, unless he’s a dumb teacher) ... the criminal then shows up at his house (!) – here, the film is beating us over the head like we’re morons – even assuming everything before made any sense, there’s no person that wouldn’t run to the police immediately at that point.
We’re supposed to believe that he takes these insane risks, risking his own family, draining his bank account (effectively his daughter’s death warrant), simply because that is preferable to inconveniencing the life of a woman he barely knows.
And that’s just the start - among (many) other things, nearly everyone is miscast (aside from Cassel, convincing enough as a psycho). I appreciate Aniston stretching here, but she’s supposed to be a cynical grifter - there’s no edge to her performance and it’s just as unbelievable she would be hanging out with a low-life scumbag like Cassel. What would they even talk about?
Stuck in purgatory.