Wikimedia Commons/Bookish TV series TV Mark Gatiss's hit cozy crime drama returns. Season 2 of Bookish promises an even more ambitious mystery in post-war London. Don't miss its summer premiere. April 18, 2026 AceShowbiz - Bookish is set to make a strong return this summer with its eagerly awaited second season, promising an even more ambitious storyline than before. Created by and starring Mark Gatiss, the British crime drama quickly became a fan favorite after its successful debut last summer on U&alibi, drawing an impressive 1.5 million viewers for its premiere episode.