In a world where an AI programme allows people to communicate with their deceased loved ones, a flight attendant and a mother question the meaning of reality and humanity.

Su-an, a performing arts high school student, becomes close with Seol, an actress and celebrity. During a trip, they realize that they have feelings for each other. However, misunderstandings pile up too much, and Seol leaves Su-an. Su-an later becomes an actress and returns to the winter sea, longing for Seol.

電影由四段故事組成，熱戀的情侶領養了一隻貓叫小愛，分手後小愛該何去何從？第二隻是浪浪小福。與家人分隔兩地又失業的男子遇到小福，從此成為彼此的依靠。第三隻是名為秀妍的貓，獨生女秀晶的朋友們都有養寵物，孤單的她每天回到空蕩蕩的家中，媽媽卻說家裡不能養貓…。第四隻是順子的故事，患有老年痴呆症的爺爺，一點都不歡迎家中的不速之客，但門外不絕於耳的輕聲呼喊，我的順子回來了…。

Having died unexpectedly, firefighter Ja-hong is taken to the afterlife by 3 afterlife guardians. Only when he passes 7 trials over 49 days and proves he was innocent in human life, he’s able to reincarnate, and his 3 afterlife guardians are by his side to defend him in trial.