The Final Delivery. 1, #1

The postman of Alhelí Street was always punctual. Until he became the final delivery. In the unassuming number 47 on Alhelí Street, in a quiet neighborhood of Madrid, every resident has something to hide. And Ramiro Sánchez, the lifelong postman, knew it. Every morning, with his Vespa and immaculate uniform, Ramiro didn't just distribute bills and letters; he guarded the community's most intimate secrets: the president's hidden debts, the attic couple's murky past, and the fatal illness of the woman on the third floor.
His decades-long routine is shattered by an atrocious scream. When the residents rush to the entrance hall, the scene is a blood-curdling horror: Ramiro is hanging inside the old elevator, strangled by the very steel cable meant to lift him. It was not an accident. It was a macabre execution, orchestrated by someone who couldn't allow their secrets to leave the mailbox. Inspector Javier Durán steps into this building that conceals more than just apartments.
He soon discovers Ramiro's secret archive: detailed notes, press clippings, and destructive truths about every resident. Suddenly, everyone has a flimsy alibi and a motive to kill the postman. Number 47 Alhelí transforms into a viper's nest where distrust is the only currency. What would you do if you found out your neighbor was a spy? What if the spy is just the fuse in a conspiracy decades in the making?Prepare yourself for a suffocating thriller that will force you to look at your own neighbors differently.
As the truth emerges, floor by floor, it will be revealed that Ramiro's murder is only the beginning of a pattern of crimes that stretches back to the building's hidden past. The truth wasn't in the mailbox. It was waiting in the elevator. And it's about to come to light.