Killer Kaun is a 2018 Hindi-language Action Mystery motion picture. Killer kaun features Arjun Sarja in the lead role along with and Manisha Koirala in supporting roles. The music was composed by National Award winner Ilaiyaraaja. It was released on 26th October 2018. Kate attends her estranged sister's bachelorette party at the request of their dying father. The weekend, held at a remote cabin booked on a home sharing app, turns into a savage life-or-death struggle that pits family against family, and past against present.