Search the Strangerville Archive in the information centre to immediatly get rid of the neighbourhood effects in Strangerville (infected people, plants) without having to solve the mystery.
Friendships will decay faster with this mod. The mod also tweaks the friendship stats so that you will need higher values to become friends (50 instead of 35) and good friends (90 instead of 60).
It also adds icons so that you can easily determine who your Sim's friends are.