The Linear Ending is the one which every player must have come across the Normal way of getting yourself out of the house. All you need to do is walk towards the Kitchen as you wake up then find the Bolt Cutter at the Exit Door then the Tape. Watch the Tape in the same room where you Get up and you will know about the secret passage. Get the Key and then walk towards the door to leave the House where you will get killed by an Old Man saying - 'Welcome to the Family, Son'.