The Checked Moon is a novel as black as the fingernails of a dead man and as scented as a flower. The protagonist is Alida, a woman suffering from a disease dating back to the cultures of middle-ages Europe. Alida is a werewolf and is married to a man suffering from the same disease, the lawyer Luca Menozzatti. They lead a peaceful life until Luca, in full metamorphosis, is killed by Manuel Bracconieri. What happens to a werewolf after death? He reverts back to human, so the police can only arrest Bracconieri for murder, not knowing that the wolf has wounded and infected him. Will Alida be able to prevent the murderer of her husband to transform inside the prison at next full moon? Is there a cure for the disease enslaving her? Is it love? Love is called Riccardo. A normal man, far from the horrors to which Alida is accustomed. But what is normality in a city, Rome, where murderers walk along the street and monsters lock themselves in their houses to protect others from themselves?