“社会性死亡”的三青哥（黄轩 饰），为了给父亲筹钱，卧底到医院附近一家名叫来福大酒店的旅馆里，试图搅黄旅店生意，迫使店主小琳（柳岩 饰）同意拆迁。但朝夕相处中，三青哥不仅与旅馆里成员渐生情谊，更见证着旅馆里来往客人的生命故事。他的内心挣扎不断，原本简单的卧底任务，成了他关乎尊严的选择。旅馆命运，不仅牵动着住在这里的所有人，更牵动着三青哥对家的渴望。但他的摇摆犹豫，却酝酿起了更大的危机……

San Qingge (played by Huang Xuan), who suffers from "social death", goes undercover to a hotel called Laifu Hotel near the hospital to raise money for his father. He tries to disrupt the business of Huang Hotel and forces the owner, Xiao Lin (played by Liu Yan), to agree to the demolition. But in his interactions day and night, Sanqing not only gradually developed friendships with the members of the hotel, but also witnessed the life stories of the guests coming and going in the hotel. His inner struggle was constant, and the originally simple undercover mission became his choice that was about dignity. The fate of the hotel not only affects everyone living here, but also affects Sanqing's desire for home. But his wavering and hesitation, however, brewing a greater crisis.