The one in the uniform ascended the steps and pushed his way through one in a row of four wooden doors, glass-windowed but guarded with ironwork. Beyond these was a broad entrance hall, probably a foyer back in the days when it had been some important businessman’s villa. In its new incarnation, this had been lined with mailboxes and provided with a few benches and low tables. A set of inner doors sealed it off from the stairs that gave access to the various units, but Sokolov knew from earlier reconnaissance that these were not locked. The building wasn’t secured at all; the only lock between these men and the inside of Olivia’s flat was the one on her door.