Good Ending: Divine - during the ritual, select option 2 and option 2 again to discover who the murderers was after the battle, walk to the bucket and select the Sacrifice your finger option, then go to the motorcycle

Bad Ending: Deceived - during the ritual, choose option 2 and then choose option 1 then leave the room and go straight to the exit

Bad Ending: Epitath - during the ritual, select option 2 and option 2 again to discover who was the murderers after the fight, go to the bucket and select the Sacrifice someone else's option, then go straight to the exit and the cutscene will start itself