Your brother Fred has been shot and this calls for revenge.
Use your brother’s dead body to take the BULLET from him. Walk to the right and enter the chruch of Dayism. Inside is Elaine Chapel, the vicar. Talk to her and ask her what you get if you join the religion. It’s a knife so tell her you’ll join and she’ll give you the KNIFE.
Walk to the left to leave the church and go to the right to visit Thakbor’s house and his mum. You can see his mum through the window knitting condoms. In the lower left corner of the window is a bottle of LUBRICANT you can take. Walk to the left twice to return to the streets of Reality. Use the knife on your brother to take all the MEAT off his bones.
Walk all the way to the left into the alley and find Punk Alan unconcious in a barrel. He’s holding a box very tightly. Use the knife on the box to find the GUN inside. Talk to the bum on the right. He’s Jeff today. Ask him if he knows who killed Fred and he might if he gets something to refresh his memory. Give him a piece of meat and he’ll remember that it was Baron Wolfgang.
Promise the bum more meat if he shows you the house and he’ll take you to the Baron’s mansion. The front door is locked but has a letterbox. Use the lubricant on the letterbox and use the letterbox to get inside. There you’ll find the Baron. In your inventory use the bullet with the gun to load it and use the gun on the Baron to kill him. It’s your revenge.
Game source: A copy of the game was found here on the internet.