The pattern of the light flickering… 

The knife on the bench…

 It’s either you, or him. 

Waiting until the pattern of flickering light offers the longest period of darkness, you snatch up the knife and drive it into the back of his neck. 

In the strobe-like light you can see blood jet from his neck onto the white kitchen tiles. He clutches the wound, drops his cleaver and turns around, clearly surprised. You step back as he stumbles to the floor, twitches, and remains still. 

A strange calmness descends over you. Keeping your eyes fixed on his body for any sign of movement, you slowly reach over to the stove, turn off the hotplate, then kick his cleaver further away. With your knife raised above his back should he so much as twitch, you check his pulse.

Nothing. 

You check his back pocket and find a flashdrive, and a photo of the killer at your feet cuddling up to Kat.

Curious, you pull Kat’s laptop from its bag still slung over your shoulder and use it to access the flashdrive. It contains only one file – an MPG dated a few days ago…