Aaradhu Sinam (2016) online

Aravind, a fearless cop leads an encounter operation where the wife of the accused gets killed accidentally. He ends up paying dearly with the lives of his wife and daughter in a revenge saga and is too affected that his brooding prevents him from taking up from further assignments. When a curious case of serial killings leaves the cops bedazzled, he takes it up as a gesture of courtesy, but his skills are needed now more than ever to track the killer.