Yeo Ji Na and Seo Pil Doo are called into the police for an investigation. However, unlike what Poong Do, Si Joon, and Chung Yi expected, Seo Pil Doo gets released not long after. Things go even worse as the police release Ji Na too, saying the case will be ruled as a suicide due to Ms. Jeong’s mental illness. Will Si Joon and Chung Yi be able to reveal the truth behind Ms. Jeong’s death? (Source: Viu)