Fifty-two rooms. Fifty-two weeks. One deadly inheritance.

The Calendar House looms over rural Shropshire like a Victorian sentinel, each of its fifty-two rooms holding a piece of the Anderson family's carefully curated legacy. But when respected local doctor Joseph Anderson dies under mysterious circumstances, the house's symmetry begins to crack.

For Ed Anderson's wife Becky, returning to claim their inheritance feels like stepping into a beautiful trap. Joe's peculiar will, his enigmatic live-in carer Samson, and the unexplained coma of his widow Sarah after a suspicious hit-and-run—everything points to something more sinister..

As Becky delves deeper into the family's past, she uncovers a web of disturbing connections: a patient's suicide, a pattern of local crimes, and secrets buried in the very walls of the Calendar House. Each revelation puts her further at odds with Ed, who would rather preserve his father's reputation than face the truth about the man who raised him.

But in a house where time itself seems to hold deadly secrets, Becky must decide quickly: protect the family name she married into, or expose the dark legacy threatening to claim another victim.

Some inheritances come with a price too steep to pay.

For fans of The Death of Mrs. Westaway and The Turn of the Key by Ruth Ware and The Inheritance Games by Jennifer Lynn Barnes.