"Ben" (Lucas Hedges) arrives at his mother's home on Christmas eve and she is delighted. "Holly" (Julia Roberts) and her daughter "Ivy" (Kathryn Newton) know that he has a problem, though. He's a drug addict and has only recently managed to go for seven days without using. A Christmas carol service and an happy Christmas beckon for all if only he can stay sober but his erstwhile dealer has other plans and using the boy's dog as bait, entices him into one last delivery that has everyone racing around before something tragic happens. It's all rather bleak, this, with neither Hedges nor Roberts…