Alpha Of Mortal Flesh by Ben Alderson

Witch. To Darkmourn, Rhory Coleman is married to the Head of the Crimson Guard – when in reality, his husband is nothing but a monster. Since his mother was brutally murdered by rogue vampires, and his father died of a broken mind – Rhory was left in the hands of someone who was supposed to love him. Someone who vowed to protect him actually threatens his existence with every breath.
Rhory must hide his innate powers alongside the bruises left by the hand of his husband. Until everything changes when a mysterious summons requests Rhory’s ‘unique talent’. He finds himself standing before a paranormal threat, one unlike anything Darkmourn has seen before.
Wolf. Calix Grey is a monster. Everything has been taken from him. His brother, his parents, his heart. He has nothing left to fight for – until fate comes knocking on his door. He believes Rhory Coleman is the key to ensure his brother is returned home – but is the price to pay worth the pain?
After years of peace between the mortal and immortals of Darkmourn – the Crimson Guard are corrupted by those who are clouded by dark pasts. Murders are left unsolved. Family secrets are tangled in a web of iron. And it will take those who lost everything to discover their truth.

Even if that means unleashing a dangerous creature into the streets of their home.