After Tae-su submits a keychain as evidence, the police discover a link to another case. Yeong-min is brought in for questioning once more.
Doubt 1x4
- DirectorSong Yeon-hwa
- GenresCrime, Drama, Mystery
- CastChae Won-been, Choi Yu-hwa, Han Su-ah, Han Suk-kyu, Han Ye-ri
