A by-the-book female detective teams up with four down-on-their-luck assassins to investigate her father's murder.

Darwin, a senior photographer who consistently uses a manual camera, is shocked to discover the appearance of a woman's shadow in every photo he takes. Soon, the woman's figure appears in real life, terrorizing him. Pia, Darwin's girlfriend, decides to investigate the woman's identity. It turns out the woman is Lilies, an outstanding student who once studied at their university. When Darwin's friends die one by one, Pia is convinced this is related to a 'sin' Darwin committed in the past.

Tamara, a vlogger who received blasphemy from netizens for uploading fake apparition videos. As soon as she learns the legendary story of the Devil's Market, he plans to prove the existence of spirits as well as clear his reputation. Together with her friends, Tamara visited a forbidden forest called Devil's Market. Instead of getting what she wants, Tamara is stuck in it.