Walls between Lee Joon Gi and Moon Chae Won are continually building up in the pursuit of truth in “Flower of Evil.”

The suspenseful thriller follows the story of Baek Hee Sung (played by Lee Joon Gi), a man who hides his past as Do Hyun Soo and pretends to love his wife Cha Ji Woon (played by Moon Chae Won). Cha Ji Won, as a detective, begins to suspect that her husband may be a serial killer, and the couple is forced ultimately to confront a dark truth they never wanted to face.

The previous episode revealed a Cha Ji Won who blew up being unable to stand anymore to her husband Do Hyun Soo’s lies. She vowed to be ending her ties with him, and Do Hyun Soo was left speechless with his wife’s outburst for not realizing that Cha Ji Won already knew the truth about him. The two’s tense relationship will continue in the “Flower of Evil’s” next episode.

The drama released new stills showing Cha Ji Won, Do Hyun Soo, Do Hae Soo (played by Jang Hee Jin), and Kim Moo Jin (played by Seo Hyun Woo).

The new photos unveil with Do Hyun Soo clothed in black while wearing eyeglasses. Hints reveal that the mysterious character has begun another covert mission as being shown with his outfit. On the other hand, Cha Ji Won receives a call at the police station, and her fellow detectives with a mixture of apprehension and concern looked at her.

Another photo teaser reveals Kim Moo Jin and Do Hae Soo continue their teaming-up with Do Hyun Soo to tell who the real killer is. Do Hyun Soo calls someone, and with curiosity, Kim Moo Jin looked at him while Do Hae Soo directs his face to him with a worried expression.