Một Cho Tất Cả, All In (2003)

All In (2003) is considered the best gambling film in South Korea, surpassing even Tazza. It was released before Tazza and marked the first collaboration between actors Lee Byung-Hun and Song Hye-Kyo in a television drama. Produced by SBS, the film stood out in 2003 with its exceptional storyline, star-studded cast, and meticulously crafted scenes.

The story revolves around In-Ha (Lee Byung Hun),who was orphaned at birth and raised by his father's friend, a former gambler. He meets and falls in love with Soo-yeon (Song Hye-Kyo). However, he is falsely accused of a murder and is forced to flee to the United States. In L.A and Las Vegas, he learns the art of poker and becomes a seasoned gambler. He wins the international chess championship and becomes involved in managing a hotel and casino, leading to a successful career. His romantic relationship with Soo-yeon comes to an end when he leaves for the U.S, and they lose contact. Meanwhile, Soo-yeon, in the U.S for research, receives help from Jung-Won (Ji Sung) and eventually marries him after a long period of infatuation.

In-Ha returns to South Korea, but Soo-Yeon's heart aches for him, as she believed he was dead. In-Ha and Jung-Won find themselves in a life-or-death battle in their intertwined lives...