In "Chasing Impossible" by Katie McGarry, the central theme revolves around trust and betrayal, highlighting how those who appear friendly can often hide malicious intentions. The quote, "It's the people who smile at you during the day while plunging a knife in your back that are the monsters," encapsulates this idea, suggesting that true danger often comes from those closest to us. Their deceptive nature makes them the real threats, as they wear masks of kindness while hiding deeper agendas.

This powerful observation leads to a deeper exploration of character relationships and the complexities of human interaction. McGarry uses this tension to delve into the emotional struggles of her characters, revealing that outward appearances do not always reflect inner truths. By examining these dynamics, the story encourages readers to be cautious in whom they trust, as the greatest dangers can come from those we least expect.