Rob's newly religious sister Sidney (Michaela Watkins) visits from the US, and a child's accident at school reveals a surprising teacher-pupil rapport to Sharon. Fran invites Sharon to see her son up close in his revealing new play, while Chris introduces his own guest - his new girlfriend. Comedy, written by and starring Rob Delaney and Sharon Horgan. An American man and an Irish woman fall in love with each other in London while navigating the choppy waters of their increasingly complicated lives.