Rey Rivera was a happy man, by all accounts. A newlywed, an aspiring screenwriter, and a devoted brother and son, he was only 32 years old when he mysteriously disappeared and turned up dead at the Belvedere Hotel in Baltimore. What happened to this bright man with his entire future ahead of him? The answer is maybe tied to his association with a friend and business partner, or maybe to an undiagnosed mental illness, or—most fascinatingly—to the Freemasons.