en Cuevana 3. When the case of the brutal beheading of scores of sparrows across the villages of West Bengal lands up at Kolkata Police's department of unusual cases, veteran inspector Kanaichoron Das and newcomer Shoubhick start their hunt for the serial killer. On the thrilling investigative trail, they discover shocking secrets deep-rooted in the history of Naxalite–Maoist insurgency in West Bengal!