The day Víctor and Ur break up their relationship, he buys the Internet domain Monstruopedia.com and creates a tool that allows you to identify your ex with a type of monster based on the answers to a test. A few days after settling in with other netizen friends, a cyberattack occurs from an anomaly known as The Halo, which seems to affect people, altering their behavior in a very particular way. A novel about grief and the processes of depression, crisis, and transformation. A novel about the virtually interconnected and humanly disconnected world, materialistic and without empathy, where love and desire survive, despite everything, in their fragility.