After a tense illegal arms deal in a Berlin hotel involving North Korean spy Pyo Jong-seong (Ha Jung-woo), a Russian broker, and a Middle Eastern terrorist goes wrong when disrupted by unknown assailants, Pyo narrowly escapes but encounters morass of conflicting evidence that may reveal why he was set up.

Also investigating the failed weapons sale, embattled South Korean intelligence agent Jung Jin-soo (Han Suk-kyu) goes after Pyo to uncover his identity, but is left trying to decode whether the North Korean "ghost" agent (whose information cannot be found on any intelligence database) is a double agent or taking the fall for a more insidious plot. Finding himself embroiled in a vast international conspiracy, Jung must determine the North's role in the deal, as well as the potential involvement of the CIA, Israel's Mossad, international terrorist organizations, and any other covert operatives lurking in Berlin's polyglot underworld.

Confronting the possibility of a double agent within Berlin's North Korean embassy where his wife Ryun Jung-hee (Jeon Ji-hyun) is a translator, Pyo discovers that Pyongyang security authorities have dispatched ruthless fixer Dong Myung-soo (Ryoo Seung-bum) to sort out potentially conflicting loyalties at the consulate. Dong's investigation quickly implicates Ryun and he gives Pyo just 48 hours to incriminate his wife, who is suspected of leaking information on the arms deal to South Korean agents trying to gain access to a secret multi-billion dollar bank account controlled by Pyongyang authorities.

Despite an apparently loveless marriage, Pyo is reluctant to betray Ryun, particularly after she discloses she's pregnant. He senses that she was set up by Dong and his father to gain favor with North Korean leader Kim Jong-un. But when the North Korean ambassador makes an attempt to defect to the West, Pyo becomes incriminated as well. Narrowly escaping an assassination squad dispatched by Dong, Ryun and Pyo go on the run, with the rival Korean intelligence agencies closing in fast.

The Berlin File (Hangul: 베를린; RR: Bereullin; lit. "Berlin") is a 2013 South Korean spy thriller written and directed by Ryoo Seung-wan. Ha Jung-woo stars as a North Korean agent in Berlin who is betrayed and cut loose when a weapons deal is exposed. Together with his wife, a translator at the North Korean embassy in Berlin played by Jeon Ji-hyun, they try to escape being purged, with Ryoo Seung-bum and Han Suk-kyu playing North and South Korean operatives on their trail.

The film was released in South Korea on January 31, 2013. It also had a limited theatrical run in 21 North American cities on February 15, 2013, including Los Angeles, Las Vegas, Chicago, New York, New Orleans, Vancouver, Toronto and Montreal.

Exposed during an illegal arms trade gone wrong in Berlin, a North Korean "ghost" agent finds himself in the crosshair of an international manhunt. Was he betrayed by his wife or his country? He must prepare to make the ultimate sacrifice.
       A North Korean agent in Berlin is betrayed and cut loose in the midst of a financial espionage intrigue. Together with his wife, a tranlator at the North Korean embassy in Berlin, they try to escape being purged, as North and South Korean operatives relentlessly purue them.