What would you do???? ..

I remember watching a movie "Shallow Grave" about 3 roommates who have a tenant in their 2 flat. They come down to find him dead of natural causes, he has no family and no sign of friends. When they look around his apartment they find $400,000.00 in cash and they figure he has no family or friends and no one will miss the money, so they decide to keep it. What would you do? The movie of course gets really weird and and everything goes wrong. The one thing i remember:  Ewan McGregor. I forgot how beauttiful he was.  Sorry B.  I still love you though.