Woo-jin is Korea's top star - every item he wears and uses are always a hot potato and gets sold out overnight. He is especially famous for remembering all his fan names. He seems to be just perfect, but there is one big secret that nobody knows - he cannot forget but only remember things. Woo-jin is forced to relive painful moments over and over again, feeling the same amount of anguish each time. One day, Woo-jin encounters a woman named Hae-soo, who suffers from the opposite pain from him: her memory resets every 30 days.

The 'Beast Cop' Ma Seok-do heads to a foreign country to extradite a suspect, but soon after his arrival, he discovers additional murder cases and hears about a vicious killer who has been committing crimes against tourists for several years.

Ghost Ji Chan, who has lost all his memories, asks for help to Jung Se Ri, who can hear him. Jung Se Ri agrees to help him to keep some distance from Ji Chan. Jung Se Ri and Ji Chan tracks back on his memory to find Ji Chan's lost memories. In that process, the truth about Ji Chan's death is revealed. An emotion of love blooms amidst Ji Chan's agony and Jung Se Ri's consolation... Somewhere between horror and romance.

A series of mysterious taxi murders continue to happen and rumor has it that the victims are all the same high school graduates. Yeon-jeong, Jin-ki and Lee-seon make a great plan to investigate this case and upload the process on YouTube to become a ten million YouTuber… One day, a mysterious taxi appears in front of Yeon-jeong and her friends! A series of horrible moments are about to unfold before them! There’s another truth to “Nightscape”, a Montreal International Film Festival nominee. What is this murder taxi that these teenagers managed to get on film!