Confession of Pain

Veteran detective Hei teams up with his former partner turned private detective Bong to solve the gruesome murder of his father-in-law, Kim, a billionaire benefactor. However, as they investigate, they realize that nothing is as it seems, and the murder appears to be a masterfully orchestrated crime with no loose ends. Meanwhile, Bong struggles to cope with the guilt of his pregnant girlfriend's suicide and starts to suspect that the killer may be someone very close to them, on the brink of a mental breakdown.