Extend the Story - Add a Room

Long story short.

You storm into the house, short but sharp kitchen knife in hand.
Your father's lover lay on the sofa, whilst your father is...

You scream in pure horror and anguish at the sight, you freak out and sprint out of the house, leaving the knife behind.

Once you have calmed down, you finally begin to remember your Primary Objective..

Go back and kill him!