The Submarine with A Rabbit Aboard

After failing his military physical, timid college student Baek Do-gi—nicknamed "Rabbit"—celebrates at a disco, only to have his tuition money pickpocketed by Mia, a desperate woman. Devastated and on the brink of suicide, Do-gi is saved by Oh San-cho, a slick street hustler. Taking the naive student under his wing, San-cho draws Do-gi into a series of lively street scams and lighthearted misadventures as they navigate the city's underbelly to track Mia down. Once Do-gi uncovers the painful truth behind Mia's reckless life, the tone turns grim as he falls in love and joins her fight against the underworld. However, their romance ends in tragedy when Mia dies from the brutal realities of her past. Hardened by grief and having grown into a man through San-cho's mentorship, Do-gi bids farewell to the streets and returns to normal society.