Jemma would kill to end the housing crisis―one landlord at a time. Jemma has lost everything. Well, almost everything. Her toxic boyfriend has run off with her best friend, leaving her alone in their apartment―and she can’t afford the extortionate rent on her own. Aimless, depressed, and above all furious, Jemma struggles to find a way forward. Slowly, her anger begins to sharpen, until it finds a clear target: landlords. If only something could be done about them… When Jemma’s landlord suffers a fatal “accident” while carrying out a property repair, she stumbles upon what feels like her life’s purpose: punishing as many landlords as possible. She begins targeting those who appear on her favorite binge-watch, a home-improvement TV show where their greed is on full display. It’s a messy job―but someone has to do it. Operating by her own moral code, Jemma is convinced her actions are justified. But how long can she maintain the line between righteous vigilante and outright villain? Under the Hammer is a darkly comic, sharply topical crime satire, perfect for fans of How to Kill Your Family and Sweetpea. This novel contains depictions of violence and emotional abuse.