After a car accident leaves one man dead and another in a coma, it's believed that the dead man was at fault. Guilt-ridden, his wife, Hee-ju, struggles to move forward. She ends up learning that the victim had previously tried to kill himself. Suspecting the accident may have been on purpose, she begins an investigation.
A typical employee, Goo Jaepil is on the verge of a breakdown. His wife files for divorce and his boss demands that he perform an absurd task. He agrees to the task in order to keep his job, but a mishap spawns a new predicament and soon Jaepil is suspected of murder.
Hyun-myung, Doo-yong- and Gun-woo decide to spend the night at their secret place at the pond to celebrate their last day of high school and Sung-pil’s sister Kyung-mi’s birthday. Later night as the party intensifies, Gun-woo and Kyung-mi go back home quickly to get something, however they don’t make it back. The rest go searching for them only to find Gun-woo’s broken scooter and Kyung-mi’s dead body near the verge of the town and Gun-woo is missing. Four years later, Hyun-myung comes back in town and runs into his old friends. Eventually the truth of the past unfolds.
Two people who don't seem like identical twins, with both having love lives going nowhere. Yet, Gae-ddong suffers from a traumatic childhood experience and is introverted with low self-esteem. Meanwhile, his friend Changsoo is proud and boisterous. As Gae-ddong finds happiness, troubles reoccur, building to a final crescendo.
