Gyeonggyein

A man named Park Juhyeon, after being murdered, pleads with the grim reaper to help him find his killer. He is given a second chance by returning to the world as a ghost. He partners with Choi Seongmin, a vampire who helps the deceased in the living world. As they investigate, Juhyeon discovers unsettling evidence and begins to question his past. He wonders if his death was truly accidental or if he played a role in it.