For decades, M. simply disliked Allen. They saw him as a fool, a pompous “international businessman” who bragged about shady deals and drove fancy cars while living in Eastern Europe and Africa. But one day Allen suddenly shows up at their father’s home in Cape Cod with his mother and 5-year-old son. He says he has separated from his wife, whom he has left behind in Moscow. M. suspects this could be a kidnapping, but their family seems to disagree.  But finally Allen does something so bad, even M.’s family can’t ignore it. Our newest podcast, “The Idiot” is out now. Search for it wherever you get your podcasts.To get full access to this and other Serial Productions and New York Times podcasts on Apple Podcasts and Spotify, subscribe at nytimes.com/podcasts.To find out about new shows from Serial Productions, and get a look behind the scenes, sign up for our newsletter at nytimes.com/serialnewsletter.Have a story pitch, a tip, or feedback on our shows? Email us at serialshows@nytimes.com 
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