Hindsight

A young assassin, Se-bin (Shin Sae-kyeong), is ordered to kill a retired mob boss, Yoon Doo-hun (Song Kang-ho). However, things get complicated when she begins to like him. As Doo-hun enrolls in a cooking class and gets to know Se-bin, he becomes the target of various attempts on his life, including from his former boss's associates who are also vying for control of the underworld.