A train ride brings two unlikely souls together as Bae, a committed partner of a serious 10-year relationship, sees her world turned upside down by the charming playboy Kim. Seated together on a business trip from Seoul to Busan, the two find themselves on an adventure to remember.

A young couple in search of their missing child receives a disturbing text message.

A baseball player learns he has three months to live and drowns his sorrows at a bar, where the female bartender turns out to be a longtime admirer.