In Beirut 1986, during the Lebanese civil war a Korean diplomat is taken hostage without a trace. Two years pass and long forgotten, a young diplomat Min-jun receives a phone call proving that the hostage is still alive. With the given mission, Min-jun is sent to Beirut to save the hostage with a bag of ransom money.
A man wakes up missing his memories. Directed by a mysterious voice from a device in his ear, he sets off on a hostage rescue mission rife with danger.
A determined detective continues his search for the truth behind Asia's largest drug organization and its elusive boss he has unfinished business with.
Hell-bent on avenging the murder of his family, a former detective infiltrates a remote island that serves as a prison for vicious death row criminals.
Followed by Ma Seok-do, who heads to a foreign country to extradite a suspect. However, he discovers additional murder cases and learns about a killer who had committed crimes against tourists for many years.
Pil-ju, a retired soldier of his 80s with dementia, goes in search of the people he believes to be responsible for the death of his family in the past. With 5 names tattooed on the fingers, and pieces of his collapsing memories, Pil-ju tracks down his targets and kills them one by one. A young innocent guy In-gyu unintentionally gets involved in his revenge, and eventually becomes the prime suspect of the murder that Pil-ju committed. To prove his innocence, and to stop this old man’s rush, In-gyu can’t help but accompanying Pil-ju’s revenge journey. Yet, Pil-ju’s plan comes closer to an end leaving one last person to execute… Before his memory is completely gone, can Pil-ju get his lifetime revenge done?
Ja-yoon is a high school student who struggles with memory loss after she endured some unknown trauma during her childhood. While trying to uncover the truth, she is unwittingly dragged into a world of crime and finds herself on a journey that will awaken many secrets hidden deep within.