Daniella Chandler a teenager witness her older brother being shot the same night she is saved from her brother's murderer by a guy(a supposed half human , half demon). 10 years later , now working as a FBI, a case leads her to discover that Alexander Dicompolas , an ex FBI believed to have been murdered in his apartment is actually alive.As Daniella gets to know him, she starts finding out more about her brother's murder and about who (and what) Alexander really is. At the same time, they get to know eachother and eventually fall in love.