In the five years following his brother''s death, Aaron has built himself a life of solitary routines. After travelling from Ireland to Boston and illegally overstaying her visa, Roisin has done the same. The two meet on a night out and find some semblance of home in one another that is otherwise missing from their lives, even as they navigate their disparate relationships with religion - Aaron is Jewish while Roisin is atheist. When Roisin becomes pregnant, Aaron is forced to reconcile with his estranged and conservative parents so that he and Roisin have somewhere to live, learning in the process that his father is dying. For the next few months, the couple live beneath the shadow of two impending events: the death of a parent and the birth of a child.