Kate (Emilia Clarke) is a very ordinary woman who lives a muddled life every day. Her personality and a series of wrong choices have led her to work as a clerk in a year-round store. Homeless Kate lives on the sofa in her friend's house. Although Kate has a mother Adela (Emma Thompson) who loves her very much, Kate refuses to go home and live with her mother because of some knots. One day, a man named Tom (Henry Golding) appeared in front of Kate and became a beacon that illuminated her way forward. Tom's appearance made Kate begin to realize that there were more or less problems in her life. With Tom's help, she began to face the contradictions between herself and her mother, and began to correct her misplaced life step by step.