(OCN)

Cable channel OCN’s time-slip crime series “Tunnel” has broken its viewership record again, gaining momentum as the show continues.

Episode eight of the series recorded a viewership rating of 5.2 percent on Sunday, according to Nielson Korea. During the broadcast, the rating went as high as 6.2 percent, outpacing other programs in the same time slot.

“Tunnel” depicts detectives and a psychologist who investigate a serial murder incident. Choi Jin-hyuk, Yoon Hyun-min and Lee Yoo-young star in the show.

By Park Ju-young (jupark@heraldcorp.com)