Little Rot by Akwaeke Emezi

In this pulse-pounding thriller set in Nigeria's elite underworld, Five breaks up with her wealthy boyfriend Aneb and seeks a chaotic night of liberation. Her wild escape pulls her into a dark, secret sex party hosted by the city's corrupt high society. When a harrowing crime unfolds during the event, Five, Aneb, and their circle of friends are dragged into a dangerous web of power, blackmail, and moral rot, forcing them to confront the ruthless consequences of privilege and deception.