Try singleplayer demo with son here!
You need to find your son, who's hiding somewhere in the flat, and beat the ♥♥♥♥ out of him. Controls:
Controls:
WSAD - Walk
Shift - Run
Space - Jump
Left mouse button - left hand punch
Right mouse button - right hand punch
Hold F and touch objects with hands to grab them.
About an hour ago this game was removed from steam greenlight.