In this romantic comedy, Alison Brie plays the role of Lainey, a woman who forms a platonic friendship with a womanizer named Jake, played by Jason Sudeikis. As they navigate their own complicated love lives, Lainey and Jake find themselves drawn to each other in unexpected ways. Brie's performance brings a mix of vulnerability and humor to the character, making 'Sleeping with Other People' a delightful and relatable watch.