Original title: "La proprietà transitiva dell'amore. Il diario segreto di una transessuale" (The transitive property of love. The secret diary of a transsexual) by
A beautiful woman imprisoned in the body of a man, Selene discovers her diversity during adolescence, when she prefers volleyball to football and the company of boys to that of girls.
Supported by her family, she gives space to her true identity and, in addition to being a model student, she is also a happy girlfriend. That is until she discovers the man of her life in bed with another. And until, alone and desperate, she finds herself accepting the advances of two guys at the height of an evening with a lot of alcohol and a lot of sadness.