I've Met You Before

Seung Ah introduces her boyfriend to Jin Kang, and he is none other than Moo Young, the guy who helped Jin Kang at the brewery. Moo Young insists that they’ve met before and this is their fourth acquaintance, but Jin Kang doesn’t feel comfortable with his presence. Nevertheless, Moo Young keeps provoking her. Meanwhile, Choi Sang Hoon, the prime suspect of the murder case, is caught in Canada and gets transferred to Korea for further investigation.