The trickiest job of a murderer is disposing of the body and covering the tracks.

My innocent-looking accomplice told me that she had flushed the dismembered body parts through the domestic plumbing system from the bathroom basin. She’d done a good job: there was nothing to be seen in the room.

However, our flat was located high up in the building and we worried that the body would get stuck in the system. Only time would tell.

In the meantime we needed to deep clean every room to remove all possible forensic evidence that could attach us to the crime.