The summer of 2023 has been hot and thrilling for Indian cinema, with a string of psychothriller films that have left audiences on the edge of their seats. One such film that has garnered significant attention is "Assassin," a gripping psychothriller that has been patched together with intense action sequences and mind-bending plot twists. In this guide, we'll take you through the best psychothriller films to watch this summer, with a special focus on "Assassin."