I think I cracked this Mafia case. Thinking about it the only night action that needs to happen is a kill. If the doctor doesn't decide to save someone or investigators chose not to investigate it wouldn't hold the game up. They may chose not to to hold their identity a secret. Won't say who my character is as I do not wish to be their next or current target as their is time before the randomness happens, but if my thoughts are true I know either both Mafia's, or I am way off.