Upcoming action-crime film 'The Merciless' has revealed its main trailer ahead of its domestic premiere in May!

Directed by Byun Sung Hyun, the film stars Siwan, Seol Kyung Goo, Kim Hee Won, Jeon Hye Jin, and more. The story revolves around a prisoner whose aim is to become the #1 criminal in the criminal organization world and an undercover detective infiltrates a prison. They build a tight bond as inmates, but once they're released, their secrets begin unfolding one by one. 

The film has been invited to the '2017 Canne Film Festival'. Will you be watching it?

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