Young Peter, Celia and Margaret, who inherited an ancient estate from their uncle, laughed at village rumors that it was inhabited by vengeful ghosts... Until the fun holiday they organized for their friends ended in a brutal murder. Really? does something mysterious and deadly really live in the estate? Or, perhaps, the estate became the hunting grounds not of a person from the other world, but of a very real, but no less dangerous criminal? .. The fact that Adam Penhallow was killed, or rather poisoned, was not surprising no one. What was rather surprising was that this sarcastic rich man with a bad character, who received true pleasure from bullying relatives, acquaintances and servants, even lived to old age. That is why everyone around the victim is under suspicion. But how do you find the real killer among more than a dozen suspects, each of whom had both a motive and the opportunity to commit a crime?