Set in south county Dublin, Grown Ups follows the chaotic lives of the Casey clan, a noisy, tight-knit Irish family, who are bound together by a tangled web of loyalty, resentment, money, memory, and love. When the rock of the family, the "good son," dies unexpectedly, it sets off a seismic emotional reckoning. Over the course of the next year, the Caseys will fall in and out of love, confront old wounds and make some new ones. They'll be forced to face not only their grief, but the exhausting, relentless, and often ridiculous struggle of being an adult. Despite their age and responsibilities, the Caseys are far from grown up.