Ultra Bleu follows Jim Park for the first 24 hours after a violent break up with his ex-boyfriend and how a chance meeting with a stranger reveals deeper issues he must confront.
Jim Ackland, who suffers from a head injury sustained in a bus crash, is the chief suspect in a murder hunt, when a girl that he has just met is found dead on the local common, and he has no alibi for the time she was killed.
Ju-won, a personal assistant for people with disabilities, steals the guide dog from her visually impaired employer, Kyung-min, to pay off her boyfriend's debt.