The Guardian (2011)

Officer Adams is sent to protect Melissa Scotsmen who has witnessed something dirty, while under his protection something goes terribly wrong, a year goes by and he still can't forgive himself for what has happened or has it? Booze and drugs becomes his friend. His best friend as well as partner Officer Tom finally intervenes and tells him to straighten up, while trying to come back strong, he finds his put in the same situation with Melissa's face everywhere he goes, but there's more to it than meets the eye. Now the question is... will he make the same mistake twice?