In this thriller, a German woman reunites with her American ex on Ibiza, where the two investigate mysteries surrounding their loved ones.

Philine “Phil” Mann’s financial trouble leads to a heartbreaking choice. She must sell her beloved Ibiza home and property, which her aunt left her. But once she arrives on the Spanish island, she faces a series of alarming events, including the disappearance of her friend Dorothea Bartholdy, who had been staying at Phil’s house, and an unexplained fire at the dwelling. Just as surprising, her former lover Adam Ryan flies in from Dallas. He’s there for older sister Amanda’s funeral, though he immediately suspects her cyanide-poisoning suicide was actually a murder. He and Phil had an ugly split years ago—a heated argument ended with a drunk Adam striking her. Still, as their respective probes into Doro and Amanda intersect, the two begin working together. It seems as if everyone involved with these women have ties to either a local feminist group or an unsavory, scandal-ridden male organization. Questions give rise to more questions, as Phil and Adam inch dangerously close to the island’s sinister side. German-born Mahlow’s first English-language novel delivers copious plot turns. Although readers will predict some, others are genuine shocks, giving this continually deepening mystery—soon entailing multiple murders—an unrelenting edginess. The story’s two apparently opposing groups stir up serious gender issues, such as equality and male violence against women. While characters do (or have done) horrible things, the author deftly portrays a cast of flawed individuals rather than outright villains. That said, the final act is exceptionally dark, and the resolution will likely disturb readers as much as it satisfies their curiosity. Still, Mahlow’s writing paints beautiful scenery, regardless of what’s unfolding, from Phil’s run-down but cozy home to the island’s “stunning landscape” of orange groves, pine woods, and a donkey cart that slows traffic.

Multilayered characters headline this gripping and profound whodunit.