The Legend of the Blue Sea

In 1598, nobleman Kim Dam-ryeong feels sorry for a captured mermaid and releases her back into the ocean. In present-day Seoul, conman Heo Joon-jae is standing on the same spot.

Joon-jae brings a woman back to his hotel, unaware that she is a mermaid. The mermaid takes an interest in Joon-jae's laptop.

With no memory, Joon-Jae is left alone on the beach next to a jade bracelet and a single pearl. Meanwhile, the mermaid keeps a promise and crosses the ocean to Seoul.

At the aquarium, Joon-jae encounters a woman being chased by security. Feeling a sense of déjà vu, he helps her escape and brings her home.

Joon-jae calls the woman Shim Cheong and when he begins to have strange feelings, demands to know what happened in Spain. A murder occurs near Joon-jae's home.

When Shim Cheong is involved in a traffic accident, Joon-jae races to the hospital to find her in critical condition. Nam finds a tape recorder inside Huh's car.