I saw a movie in English on television 2-3 years ago. I’m fairly certain it was a movie but i did start watching it part-way through. It was in colour.
The plot focuses on one woman (who looked kind of like Elisabeth Banks) who starts dating 2 people. 1 is a co-worker who is the bookish-accountant type and the other is someone she meets in a nightclub.
She is initially repulsed by the nightclub guy, but starts casually seeing him. There’s one scene where they’re engaged in sex on a balcony and she fakes an orgasm. A couple of scenes later they discuss why she faked it.
The nightclub guy is also under investigation by a detective who at one point breaks in to an apartment fearing that there’s something wrong, but only finds the couple again engaged in sex.
I didn’t watch the end of the move, but it felt like the plot was moving towards revealing that the bookish guy and the nightclub guy turn out to be one person with 2 personalities. I’d like to know the name of the movie so i can read the synopsis and see if i was right.