Hae-jun's investigation of Seo-rae as a suspect gradually leads him to develop feelings towards her.
The film follows married detective Jang Hae-jun ( Park Hae-il), whose investigation of a man's death leads him to the man's widowed wife, Chinese immigrant Song Seo-rae ( Tang Wei). Decision to Leave ( Korean: 헤어질 결심 Hanja: 헤어질 決心 RR: Heeojil gyeolsim lit. 'Resolution to Break Up') is a 2022 South Korean neo-noir romantic mystery film produced and directed by Park Chan-wook, who co-wrote the film with his frequent collaborator Chung Seo-kyeong.
