You can find the full series with Vietnamese subtitles on several popular streaming platforms in Vietnam: Offers high-quality streaming for this series.
Crime Puzzle (2021) is a 10-episode South Korean psychological thriller based on a popular webtoon. It follows Han Seung-min, a genius forensic psychologist who suddenly confesses to murdering a prominent political figure and is imprisoned. His ex-girlfriend, criminal profiler Yoo Hee, refuses to believe his confession and initiates a series of interviews with him to uncover the truth, leading to a high-stakes "puzzle" of hidden motives and psychological warfare. Key Features of the Series crime puzzle vietsub full