ok if you killed dwaine then this is how you get in playboys house (not to save)
1. go look at playboys house from the front door
2. go down the street to the right of his house
3. when you come to an alley way with a dumpster next to a fire escape jump on the dumpster then jump on the fire escape and climb it and your done!
here's a map of the places the northern most one is his main entrance