Butcher & Blackbird by Brynne Weaver is a dark, seductive romantic thriller that follows two morally grey vigilante serial killers—Sloane Sutherland and Rowan Kane—who meet under violent circumstances and strike up an annual game of hunting the same targets: other killers. As their dangerous tradition continues, their rivalry deepens into a twisted friendship and eventually into a slow-burn, intense love story laced with sharp wit, brutal justice, and emotional vulnerability. With graphic violence, dark humour, and sizzling chemistry, this first installment in the Ruinous Love trilogy explores the fine line between justice and obsession, love and destruction.