Why was it You?

Benjamin is a lonely detective who lost his wife a few years ago. He is a glass half empty type of guy and doesn't always look on the bright side. Then one day he meets a woman by the name of Doriana Y. O'miley. She appears to be a smiley, glass half full, looks at the bright side most of the time type of girl. After their first meeting they keep bumping into each other and she keeps giving Ben a reason to love again. But, Doriana is hiding something dark. And Ben doesn't find out. That is until he's too far in.