Shin Hye-sun and Lee Jun-hyuk are set to deliver an unpredictable mystery in the upcoming Lady Dua.

The two star in the Netflix original series as Sarah Kim, a woman of unknown identity, and Moo-kyung, a detective obsessed with uncovering the truth. Newly revealed character posters offer tantalizing clues about their intertwined narratives.

Sarah Kim's poster features obscured personal identification, a bag, and business cards—details that hint at a life lived on the edge between truth and deception. The line, "If you can't tell what's real, can you still call it fake?" deepens intrigue around her character.

Moo-kyung's version is filled with interrogation-room imagery, including a chalkboard marked with questioning traces and handcuffs. The copy, "Who are you standing in front of me?" foreshadows his growing confusion as he closes in on Sarah Kim.

The main teaser adds to the suspense. In voice-over, Sarah Kim says, "Lies make everything look beautiful, like a sunset—at least until they're exposed." As multiple, conflicting faces of her character flash by, those who encounter her struggle to define who she truly is.

Lady Dua follows a woman who longs to become a luxury brand, even if she is fake, and the man who traces the desires and truths surrounding her. The series premieres on Netflix on February 13.