"No Matter What, I'll Catch You") is a 2017 South Korean crime thriller film about a landowner who teams up with a former detective to chase after the suspect of a 30-year-old unsolved case.

The two men eat, and during the ensuing conversation, Mr Choi reveals himself to have been a former police detective and opines that the two deaths Deok-su had encountered earlier were murders committed by someone who was likely practising on the elderly prior to moving on to young women.

Pyung-Dal digs up proof that Mr Choi was far from suicidal and shares with Deok-su details concerning a string of similar murders of pensioners and young women that had taken place thirty years before.

The former detective surmises that Ji-Eun must have been kidnapped and convinces Deok-su not to inform the police lest they put the missing woman's life in danger.

After many twists and turns the perpetrator is revealed to be a mild-mannered doctor admired around town for his medical volunteer work and his seemingly selfless devotion to his paralysed wife.