Sidney Kimmel Entertainment, A Bigger Boat and GreeneStreet Films have purchased “Obsessed” screenwriter David Loughery’s supernatural thriller pitch Mourning After. The three banners will co-finance, develop and produce. Loughery is currently penning the screenplay, set in contemporary San Francisco and centering on a man who falls in love with a beautiful woman with a timeless, deadly secret. Story’s based on an original idea from Sparkler topper Charles Segars and Steve Ireland. Loughery also penned crime thriller “Lakeview Terrace.”