Bae Jong-dae

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.

father is gone, The girl was left alone. The boy can't do anything.