In Netflix’s limited series “Eric,” from screenwriter Abi Morgan (“Shame,” “The Hour”), famed puppeteer Vincent Anderson (Benedict Cumberbatch) and his wife, Cassie (Gaby Hoffmann), are forced to grapple with what-ifs when their 9-year-old son, Edgar (Ivan Morris Howe), vanishes. While Cassie leans on the NYPD and Missing Persons Squad detective Michael Ledroit (a compelling McKinley […]