Jin-a, a young prostitute, moves into a seaside motel called the Birdcage Inn, run by a dysfunctional family. Struggling with her circumstances and the family's treatment, she forms an unlikely bond with the daughter, Hye-mi. As they navigate love, betrayal, and personal growth, their friendship ultimately leads to a deeper understanding and a chance for redemption.

Tom, greeting-card writer and hopeless romantic, is caught completely off-guard when his girlfriend, Summer, suddenly dumps him. He reflects on their 500 days together to try to figure out where their love affair went sour, and in doing so, Tom rediscovers his true passions in life.