Jonah Grey is driven by a lust for the blood of the legendary Chupacabra who murdered the woman he was to mate with in a horrendous manner. He jumps at the offer to leave the FBI and join Night Seekers, a group of people dedicated to hunting and killing the devil beast. When a new killing is reported, Jonah is assigned to investigate. Following a track late one night, Jonah encounters comes upon a cabin where a woman lives alone. Through the window he sees her pleasuring herself and both his wolf and human senses are fully aroused.
When he goes to question her there is such explosive chemistry between them that neither can turn away from it, and the sex that follows brings them to a level of pleasure neither has ever known before. He moves into her cabin dividing his time between tracking the Chupacabra and erotic bouts of orgasmic sex with Dakota. They form a bond that goes beyond the hot tumble in the sheets. She is even accepting of him when she sees him in his wolf form. But will she agree to mate with him and accept him full into her life? Is the beast they track and kill the real Chupacabra…or a fake, leaving the real beast to search for yet another prey?