The game has three endings in total. These include 'The don't forgive ending' which is this one Im currently writing about. Then the ending where you 'Forgive' and finally the more secret ending which is 'The tree and the apple' or the one in which you find out what the true Inheritance is.
Both the Don't Forgive and Forgiveness endings are quite simple to work out.
For this one (Don't Forgive) play through making sure you show the father in a bad light.
FOLLOW THE MOTHERS PATH ALL THE WAY THROUGH
DURING THE MEMORY SEQUENCES:
1) Don't let the Dog out in the kitchen
2) Don't get the dog off the sofa
3) When the painter paints you make sure you look away constantly
4) Don't take the piano sheet music when the painter is playing piano (you will see it glowing white)
5) When in the closet don't lock yourself in
6) Turn the gramophone on while your mother is asking for help
7) When playing the piano just mash the keys until the father becomes angry
8) When given the option to paint or use a crayon in the Art studio use the Crayons all the way through. Don't use the Paint brush
9) In the section where you collect three piece of paper with the wife's face view it after finding the pieces (if you follow the mothers path throughout the picture should come out disfigured)