《大家庭》是一部以家庭为题材的喜剧剧情片，讲述了因儿子“咸文锡”（李昇基 饰）出家而断代的饺子店“平满屋”老板“咸茂玉”（金伦奭 饰），以及从未见过的孙子们找上门来而发生的一连串事情。

　　An actress preparing to return to acting after a long hiatus, who gets caught up in an unexpected incident and heads straight towards catastrophe.

　　Un professore di psicologia ormai in pensione si ritira con sua moglie in una casa in campagna piuttosto isolata. Non tanto le quotidiane, irritanti e indesiderate visite dell'unico vicino, che riesce a trasformare in assillante tortura la pacifica vita quotidiana della coppia. Una quotidianità che si popola di incubi con l'apparizione dell'ancora più grassa consorte dell'uomo.

 "Can't we all just live together?" It would be nice, but for the twin brothers Il-do and Yi-do, it's just a wishful thought. Born under a cursed fate due to their parents' original sin, one must die for the other to live. To avoid this, they have deliberately cut off contact. However, when Yi-do, who works for a gang, gets stabbed, Il-do somehow hears about it and rushes to donate blood, saving his brother's life. But instead of gratitude, Yi-do attacks him the moment he sees him.

 浩泰和东熙从小像兄弟一样一起长大。几年前搬到首尔的浩泰在父亲葬礼后重新回到了江陵。另一边，东熙因为出柜被赶出家门，独自生活在浩泰家的空房子里。时隔许久重逢的两人，开始了同一个屋檐下的生活。东熙再次看到既像亲兄弟又是自己初恋的浩泰时，虽然想控制住自己激动的心情，但并不容易。浩泰也对好久不见的东熙产生了至今为止从未有过的情感，为了从对东熙的混乱感情中逃脱，浩泰开始随便交女朋友。看着这样的浩泰，东熙感到很受伤，而两人岌岌可危的关系也因为一次意想不到的事件为契机开始慢慢发生变化… 这部为《非故意恋爱故事》的衍生电影