A murder mystery, Raat Akeli Hai is based in Kanpur where a wealthy patriarch, Raghuveer Singh is murdered on the night of his wedding. Jatil Yadav, a cop (Nawazuddin Siddiqui) arrives at the crime scene and that is where the investigation starts. Yadav begins his investigation by questioning Radha (Radhika Apte). Radha, who married Raghuveer on the night he was murdered, was bought by him and later was his keep. The film moves on to show nail-biting twists and truly keeps the audience stuck to the screen.