Film critic Dogyeong belatedly learns of an old friend's death. As it happens, this comes not long after the demolition of an old theater in Gangwon Province. Somehow, the two events do not feel all that different to her. As her work as a critic takes her from place to place, Dogyeong searches for her late friend’s short film and visits theaters and screening spaces where it might once have been shown.

In Joseon, a vengeful crown prince and a memory-lost merchant mysteriously swap bodies, unraveling a web of chaos, secrets, and unexpected fate.

Hwa-ja has been raising three daughters alone in Busan after her husband passed away. One day, the second daughter Hye-young comes back to Busan after having continuous setbacks in Seoul. While spending time with her mom, she accidently sees a letter written in Japanese, which triggers her curiosity. She starts to ask Hwa-ja about her past life and gets to know new stories of her mother that she had never heard of.