Wonderful Nightmare

A crime action investigation drama about police investigator Jin Kang Ho from the serious crime squad who never gives up on a case until he gets to the end of it. He will solve unsolved cases with a team consisting of a passionate producing director (PD) of an investigative show with low viewership ratings, a detective who used to be a profiler, a bar CEO who puts his violent past behind, and a funeral director who used to be a well-esteemed autopsy doctor at the National Forensic Service (NIS).

Dong-hyun is a high school student. One day, he falls from the rooftop and bumps into Pan-soo who is a passerby. Pan-soo is a member of a criminal organization. When the two men wake up in the hospital, they discover that they have switched bodies.

For eight years three grandmothers saved their money for a VIP tour packages to Hawaii. The grandmothers have all had difficult experiences and used their dream vacation as a beacon of hope in their lives. The grandmothers then go to the bank to wire their money, but at that moment the bank is held up by robbers. The grandmothers lose their savings and the bank can't offer any assistance. It is at this moment that the grandmothers set off track the robbers down themselves...

High school student Sung Jin commits suicide after being the victim of school violence for a long time. Three years later, one of his bullies Han Yeo Wool debuts as a celebrity. Sung Jin's brother, Sung Hyun, blames himself for not recognizing the pain his brother went through and finds a comment on Han Yeo Wool's news report that Sung Jin didn't commit suicide but was instead killed by Yeo Wool. The brother sets out to find the truth and he heads for destruction.

Eun-jin who is a living legend among the gangsters dominates the male-centered underworld wielding only a pair of her trademark blades. One day, Eun-jin finds her sister from whom she was separated at an orphanage during childhood, and her sister tells Eun-jin that her last dying wish is to see that Eun-jin gets married.

Ha-eun, an ordinary housewife who has endured her husband's violence for 13 years, challenges her husband, who is a mixed martial arts champion, to a duel in the ring.

In-seon is about to leave to Spain as a foreign exchange student when she hears shocking news from her terminally-ill mother. Her father she thought dead, was alive and she was born when he raped her mother. While she had inner conflicts about her existence, she decides to find him and kill him. She disguises herself as his previous wife's relative and starts living with him and In-seon's actions of revenge gradually collapses...

Chang-do earns his living by being beaten. His fiancée gets killed by a drunken driver, Hee-sung. But she gets off scot-free with money. Chang-do’s minions hit her to be in a coma. Chang-do takes Hee-sung to hometown. Hee-sung awakens but loses all her memories. What will be their destiny?