Tower Block - Flat 20 (4th Floor)

Fourth-floor flat in a looming tower block releases a choking foul odor and dense clouds of flies through its door, marking rot and decay inside. The postman recoils from the stench at Norland Road Police Station, his words halting as he describes the swarm—clear signs of a decomposing body. Catherine Cawood registers the report, her exhaustion sharpening into focus on this fresh crime scene hint, shadowed by Tommy Lee Royce's lingering threat. The space looms as an isolated trap of urban neglect, primed for grotesque revelations.