Marvin Flute might just be the most brilliant detective when it comes to apprehending a cannibalistic clown or pinpointing a mid-century modern armoire. However, there’s one enigma he still struggles to solve—his own family. Now that he’s returned to Grimsburg, a town brimming with secrets, Flute is determined to pursue every clue to win back the ex-wife he still loves, even if it requires spending time with the son he never took the time to understand.