Overview: Max and Tess follow a clue to an Amsterdam cemetery where they uncover an old family secret and unknown key. Meanwhile, Anika has suspicions about the new cleaning lady.
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First Air Date: Mar 11, 2017Last Air date: May 20, 2021Season: 4 SeasonEpisode: 90 EpisodeRuntime: 22 minutesQuality: HDIMDb: 7.70 / 10 by 34 usersPopularity: 34.508Language: English, German, Hungarian