In the gritty crime thriller Walk Among the Tombstones, A, Liam Neeson stars as Matt Scudder, an unlicensed private investigator and former NYPD detective haunted by his past. When a heroin trafficker (played by Dan Stevens) hires Scudder to find the brutal kidnappers who murdered his wife, the case plunges him into a dark underworld of sadistic criminals. Set in 1990s New York City, the film pairs Scudder with a resourceful teenage street kid (played by Astro) as they track a pair of serial killers who target the wives of drug dealers. Directed by Scott Frank, this adaptation of Lawrence Block's novel blends taut action with a brooding, atmospheric tone that underscores Scudder's moral struggle between justice and vengeance. As the investigation grows more dangerous, Scudder must navigate a world of violence and corruption, confronting his own demons while racing to stop the killers before they strike again. With strong supporting performances from David Harbour, Sebastian Roche, and Olafur Darri Olafsson, the film delivers a gripping, character-driven narrative that keeps viewers on edge.