Set against the backdrop of 1960s Bangalore, Aachar & Co. follows the journey of a traditional family as they navigate the challenges of embracing modernity while honouring their roots. The film brings together a delightful mix of nostalgia, humour, and drama, capturing the essence of that era.

Rohit is entangled in a series of murders involving women he knew, disturbing him. After a confrontation where he kills Shetty, Rohit is the suspect, unveiling surprising truths about the murders' origins and his own role in the mystery.