This month's literary offerings include three psychological thrillers that explore themes of toxic secrets, dangerous friendships, and the lasting impact of past traumas. Jude O'Reilly's "Heartbreaker," Sarah Hornsley's "One Dark Summer," and Rebecca Bainbridge's "The Pool Party" each present intricate plots driven by complex characters and suspenseful narratives.

"Heartbreaker" by Jude O'Reilly, a standalone title, shifts from the author's previous Michael North series to focus on the psychology of guilt and the motivations behind murder. The novel is set in the U.S. and follows Daphne Monroe, a defense attorney who investigates the murder of her husband and children. Monroe finds herself as the police's prime suspect while also being targeted by the actual killer. The plot incorporates modern medicine into its intricate structure, aiming to provide a gripping and original storyline.

Sarah Hornsley's "One Dark Summer" is set on the remote British tidal island of Osea, a location chosen for its bleakness, which serves as a backdrop for hidden secrets. The story centers on Lily, who travels to the island seeking answers about her mother's abandonment when Lily was four years old. Lily, a therapist, uses her professional insight to navigate her own inner turmoil and the psychological analysis within the narrative. The book is described as a clever work from a promising young writer.

One Dark Summer is available now from the Mail Bookshop

"The Pool Party" by Rebecca Bainbridge centers on a dramatic pool party at a lavish home, serving as the focal point for the exploration of toxic secrets shared by two mothers whose dangerous friendship began at their children's school. Kate moves to the seemingly idyllic village of Fletching with her husband for a fresh start and befriends Melody, a glamorous figure whose annual pool party is a social highlight. As their friendship deepens, it becomes clear that both women are concealing significant truths. The narrative, told across dual timelines, builds to a critical incident during the party. Bainbridge's novel examines motherhood and friendship with finely tuned observations, presenting a relatable story filled with tension.