Ethan is a stabber who the police alert the neighborhood about. Anton recently befriends Ethan on the train and later, Issa and Billie unwittingly invite Ethan into their house. Anton tries to run Ethan over rather than decline an invitation to dinner. Eventually, the police arrive to arrest Ethan after bringing Samir and Paul Baker back to the house.

Billie experiences a medical crisis where she ends up shitting blood and needs a colonoscopy. She appoints Samir as her medical proxy. Samir pushes for Billie to get additional tests done immediately, including an endoscopy and another test that was originally scheduled for later, which causes tension as he realizes he may have gone too far.

Samir and Paul Baker try to sell a shotgun found in the house in an attempt to help pay Billie’s medical bills. This subplot intersects with the police involvement when they bring Samir and Paul Baker back to the house during Ethan’s arrest.

Issa encourages Billie to be more sexually adventurous, which leads to them unwittingly inviting Ethan, the stabber, into their house. Issa also struggles with feeling taken seriously by her friends and volunteers to be Billie’s medical proxy, but Billie chooses Samir instead.

Anton grapples with his tendency to become overly sociable, which is highlighted by his befriending Ethan, the stabber, on the train. This sociability leads to complications, including his attempt to run Ethan over and his involvement with the police alert about Ethan.