So, from what I managed to piece together:
You are on an adventure to get an artifact, a chalice, and to save a few friends or strangers. You drive to the village only to find it blocked off, so you take a hidden tunnel to the left by activating a light. You explore a broken shack to find a gun, and further ahead you find a strange glowing woman who will help you on your quest.
After entering the village, you clear out the church to create a stronghold for your adventures. You then need to go to each of the 4 buildings (tavern excluded) and have sex with the priestesses and free your friends/strangers. They then take shelter at the church (I made sure to clear the map of the zombies).
After the second priestess, you need to go to the glowing woman from before to refill your ero energy through more sex. If this option doesn't appear, save, go to the main menu and reload your save.
Once you've gotten all the priestesses, to the left of the tavern is a path to some ruins. Traverse to the end and climb the stairs to the Witch. Upon seeing you, the witch will cast a spell to enter your dreams. Navigate through the maze and get to the cryptic message. Open the door to the right with the sex and then shoot the woman who is fucking you, you shoot the woman who isn't bloody.
You then wake up and need to make your way to the cliff edge where a looming down stands. You climb the tower and shoot the Witch in the head and proceed further to your spoils. You then drive away with the still naked girls, despite the myriad clothes littered around the village. And there is an ominous reveal that the witch is still alive? Or someone else was there? idk.
Somehow, this witch that turned a village into undead monsters somehow can't seem to even scratch you, nor did she take the chance to kill you in your sleep. Also, somehow none of the villagers decided to just shoot her in the head with a shotgun, which is pretty fucking common in the village.
Overall, I just don't recommend it. The game file is too large for how little content there is, and it's so dark that lowering your graphics makes it easier to see.