Overview:After receiving a strange letter from a dead man, the detectives look for answers in his hometown - and from his four suspicious friends.
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First Air Date: May 04, 2018Last Air date: Jan 22, 2021Season: 3 SeasonEpisode: 28 EpisodeRuntime: 85:14 minutesQuality: HDIMDb: 3.1 / 10 by 36 usersPopularity: 116.481Language: ko
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