Sungjong lives in a world where everyone gets a chance to live another life. Legends say it started because of one's good or bad karma, but no one knows for certain. After several lives, he meets someone special...with an infinity symbol, instead of the typical, evergrowing tattoos that show the number of lives. Myungsoo is different. 

It was just a fun weekend getaway. Gunwoo never expected the electricity to go out, but it wasn't until it returned that he was truly terrified. 

Sungjong and Myungsoo both get selected for a survival game, voting others off one by one. Contestants must be cunning and watch their own backs, in order to win. Victory will come at a high price.