A weak plot point
The lesbian thing.
In the film Emily did not in any way suggest herself to be bisexual. Siebert did not either. The murder plot's basis comes down to Emily's confession that two got sexually involved one day?
Straight women mad at their husbands realistically don't just hike their skirts for their female psychiatrists. Professional psychiatrists realistically don't suddenly give into kinky displays from the couch.
It seems like the (male) writer had to find some way to make the story plausible--or even at least function.
"I got it! <snap> They're horny man-hating get-rich-quick chicks! Eureka!"
But yes, of course, I understand this movie is simply a lurid potboiler. It's just that contemporary filmmakers try to pass off these works as 'true to life' and 'realistic'.
Not a bad film; just some laughably phony plot points.
(I did chuckle when Jon prescribed a drug that would make Emily's ever-so-well-kept hair fall out. Her consistently sexy mane was a dead giveaway.)