Plot synopsis: Happy couple Tae-seop and Jeong-hwa, who are about to get married, disappear one day, and Jeong-hwa is psychiatrically diagnosed with the spirit that her boyfriend Tae-seop is a fictional character. Jeong-hwa, who is struggling, falls in love with Jeong-gook, a psychiatrist who takes care of her. Meanwhile, Tae-seop who disappeared was kidnapped after being gaslighted by his ex-girlfriend Soo-ri.