Rat (2010)

They are in their early thirties, and they are successful, accomplished residents of the metropolis. Natasha is a doctor, her husband Vincent is a French journalist, Igor is a promising and sought-after architect, and his sweet, smiling wife Anna is a certified psychologist. Couples communicate a lot and willingly. However, neither Anna nor Vincent suspect that Natasha and Igor are secretly dating. This is not just a love affair. Both Natasha and Igor seem to be in serious love with each other.