Mafia 107. Fever and Overdose

Fragment is roleplaying his nightly drinking spree. Yesterday, when he attacked me, I thought it was a well-known strategy to identify attackers, but maybe I overestimated the approach. The previous vote clearly shows that I am a peaceful player.

For now, I don't see any reason not to execute the Master today. Are there any better candidates? I can suggest Lynx.
Regarding the father being immune to the mother - the role description states that it's immunity to her normal ability. I don't think he's immune to her ultimate ability.