Devil's Night Series by Penelope Douglas

The Devil’s Night series by Penelope Douglas is a dark romance saga that delves into themes of revenge, redemption, and forbidden love. Set in the affluent town of Thunder Bay, the narrative revolves around four influential men—Michael Crist, Kai Mori, Damon Torrance, and Will Grayson III—whose lives are irrevocably altered by the events of a single, chaotic night known as Devil’s Night. Each installment focuses on one of these men as they confront their past misdeeds and navigate complex relationships

• Corrupt - Erika Fane becomes entangled with Michael Crist, her boyfriend's older brother, leading to a dangerous game of obsession and vengeance.
• Hideaway - Kai Mori seeks to reclaim his life after imprisonment, crossing paths with the enigmatic Banks, who harbors secrets that challenge his perceptions.
• Kill Switch - Damon Torrance confronts his dark past and a tumultuous relationship with Winter Ashby, exploring themes of trauma and redemption.
• Nightfall - Will Grayson III and Emory Scott face the consequences of their shared history, seeking forgiveness and healing in a secluded mansion known as Blackchurch.