Rachel Griffiths, Love/Hate's Barry Keoghan and Game of Thrones' Michael McElhatton star in this tense drama about a grieving woman who befriends a homeless teenager, as he reminds her so much of her recently-deceased son. Before long, the teenager and the woman's past come back to haunt them, one in the form of a violent gang and the other in her ex-husband's unhinged, violent nature.