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Singer Lee Chan-won investigates a case surrounding secrets hidden behind smiles on MBC’s "Surprise Mystery Salon."
The episode airing on the 9th, titled "Thought It Was Romance, But It’s a Thriller? The Dangerous Secret Hidden Behind Her Smile," unfolds as a woman finds herself at the center of a conflict between her ex-husband and current husband. What initially appeared to be a romantic situation escalates into a thriller.

In a previously released trailer, Lee Chan-won drew attention by singing a snippet of an I.O.I song in trot style while saying, "I was lying down to sleep when suddenly..."
After watching the video showing the woman’s sudden change in demeanor, Lee remarked, "Her expression completely changed," raising curiosity. Later, when a mysterious notebook is discovered in a car and secrets are revealed, he added, "Could she be cheating?" further heightening intrigue.
The program will air at 10:40 a.m. on the 9th.
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*This content was translated by AI.View Original

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