It is based on Charles Brandt’s book, “I Heard You Paint Houses,” about Frank Sheehan, a mafia hitman who was involved in the death of Jimmy Hoffa. On November 16, 2017, I had Brandt on my radio show to explain how he got Sheehan to reveal his secrets, whether he was ever afraid of mob reprisals, and what happened to Hoffa’s body (spoiler: it’s not under Giants Stadium). As you’ll hear, Brandt is a helluva storyteller.