For some backstory, see this DoJ press release ("Murder For Hire Convict Sentenced To Ten Years In Prison" / "Allen Gessen Was Convicted Of Soliciting an Undercover Agent to Murder the Estranged Mother of His Children") and the N.Y. Times introduction of the podcast. From Allen Gessen v. Masha Gessen, decided today by Judge Leo Sorokin (D. Mass.); note that Allen Gessen is a lawyer, albeit unsurprisingly now a disbarred one:
This action began with a flurry of simultaneous filings by [Allen] Gessen. He filed a complaint naming himself and his children, O.G. and E.G., as plaintiffs and bringing claims against a journalist who is his cousin, The New York Times, and Serial Productions. The claims seek to prevent the publication of a podcast the defendants are producing about Gessen and his family. The complaint was accompanied by motions to proceed anonymously and to seal Gessen's submissions to the Court.