奇优影院(www.pplearn.com)为您提供纪录片《未解之谜第五季》剧情介绍：Unsolved Mysteries is back with new episodes with more perplexing cold cases and supernatural events. Unsolved Mysteries is from the creators of the original docuseries, CosgroveMeurer Productions, and 21 Laps Entertainment, the producers of Stranger Things.