The idyllic Peter Dann Castle is a picture of tranquility as summer blooms in the Himalayan foothills. The heritage hotel has a reputation of being blessed – whatever happens here is said to happen for the good. Harith Athreya is invited here by his friend Javed, a retired police psychologist, to solve what appears to be an ominous riddle.

Five friends have checked into the hotel, pretending to be mutual strangers. All other guests who were to check in have inexplicably cancel their bookings at the last moment, leaving the five as the only guests at the hotel. Suspicious, Athreya and Javed investigate and find that all the other bookings were spurious. What devious plot are the five guests hatching?

But all five seem to be typical millennials in their late twenties: an angel investor (Sarosh), an interior designer (Ipshita), a popular singer (Dhavak), a religious girl (Linda) and a freelancer (Purbhi). Would such a group really be plotting something nefarious? Meanwhile, marks of a bloodied hand appear overnight. A woman staying in a nearby homestay (Mrinal) is seen secretly burning papers. And to top it all, Javed’s daughter (Asma) is attacked by a knife-wielding man.

When one of them plummets to their death off the rooftop terrace, Athreya and Javed investigate. Evidence and lies quickly pile up, and it becomes apparent that all the five guests had known Mrinal despite their claims to the contrary. Will Athreya be able to unmask the killer before the hotel claims another victim?