Tell Me What You Saw Season 1 Episode 9 Episode 9 ( Air Date 2020-02-29 ) Genre Drama, Mystery, Crime category. Overview "RIU Team One finds a witness to the murder case. However, the witness states Tae Sik is not the culprit. He provides a drawing of the murderer, and he looks similar to Choi Du Man. But when the team gets to arrest him, Du Man is already dead. The case becomes a bigger mystery. Who is the real killer?".