Love in Disguise

Love in Disguise: Yim Si Wan and Seol In Ah’s Suspect-Investigator Dynamic Slowly Turns Romantic

A murder suspect and the undercover officer investigating him — falling for each other while neither can reveal who they truly are. That's the premise fueling tvN's upcoming romance thriller…

September 21, 2026
3 min read

A murder suspect and the undercover officer investigating him — falling for each other while neither can reveal who they truly are. That’s the premise fueling tvN’s upcoming romance thriller “Love in Disguise,” and newly released stills are already teasing the slow-burn tension between leads Yim Si Wan and Seol In Ah.

Love in Disguise: Overview

A murder suspect and the undercover officer investigating him — falling for each other while neither can reveal who they truly are. That’s the premise fueling tvN’s upcoming romance thriller “Love in Disguise,” and newly released stills are already teasing the slow-burn tension between leads Yim Si Wan and Seol In Ah.

“Love in Disguise” follows Yoon Yi Jun (Yim Si Wan), an arrogant chaebol heir who becomes the prime suspect in a murder case, and Kang Jae Hee (Seol In Ah), a former special forces officer who goes undercover as his personal secretary to investigate him from the inside. The drama is adapted from the popular webtoon and web novel known in Korean as “Why Don’t You Know She’s a Woman?”

Love in Disguise
Love in Disguise

A Relationship Built on Layers of Deception

What makes the premise compelling isn’t just the mystery — it’s how the characters’ dynamic shifts over time. The story begins with Yoon Yi Jun and Kang Jae Hee positioned as suspect and detective, with Kang Jae Hee keeping close tabs on him as her prime lead. As the investigation deepens, their relationship transforms into one of executive and personal secretary, adding a new layer of professional proximity that neither can fully separate from their growing personal feelings.

What the New Stills Reveal?

Still SetKey Detail
Case briefing sceneYoon Yi Jun stays relaxed despite the murder accusation; Kang Jae Hee remains sharply focused
Secretary interview sceneKang Jae Hee appears visibly stiff, while Yoon Yi Jun watches her closely

These contrasting expressions hint at the drama’s central tension: two people constantly performing roles for each other while quietly harboring feelings they can’t yet admit.

Why This Drama Has Potential?

Romance thrillers built around hidden identities work best when the emotional stakes feel as real as the mystery itself. With Yim Si Wan’s track record for nuanced, layered performances and Seol In Ah’s ability to convey quiet intensity, “Love in Disguise” seems well-positioned to balance its investigative plot with genuine romantic tension rather than leaning purely on melodrama.

“Love in Disguise” premieres October 19 at 8:50 p.m. KST.

For more upcoming K-drama previews and cast reveals, check out our entertainment coverage on technosports.co.in.

FAQs

Q1. What is “Love in Disguise” about?

It follows a chaebol heir accused of murder and the undercover officer posing as his secretary to investigate him, as their relationship slowly turns romantic.

Q2. When does “Love in Disguise” premiere?

The drama premieres on October 19 at 8:50 p.m. KST on tvN.



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