Our Sweet Revenge by A.V. Shener

Four friends get tangled in a web of dark desires and a thirst for revenge.

Years have passed since four friends were as close as brothers. With Ethan losing his job, Anthony divorcing his wife, and Jay going to prison, dark times have taken their toll. And then there’s Chris, who’s climbing up the social ladder and hurting those who were once his closest friends.
Determined to get even with the one who abused their trust, a secret plan is set into motion, reuniting the four men in a secluded cabin from their past. With little to hold them back, dark desires surface and threaten to put the final nail in the once unbreakable friendship.

How far will they go to settle old scores?