





Ten years after discovering her murdered uncle, Ena and Detective Hansaem must cooperate to stop a series of similar murders - each linked by strange puzzle pieces.
This crime thriller is designed for mature audiences and is not appropriate for infants and toddlers due to its content, but if considering stimulus level alone, contemporary TV-MA dramas typically feature fast editing, intense sound design, and complex visuals that would be overstimulating for very young children.
Stimulus rating reflects pacing, visual complexity, and sensory intensity — factors associated with attention development in children under 3. Learn more
Ratings based on MPAA/TV classification and TMDB metadata. Updated March 2026.
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