A comfortable read, very light and fun. Follows a group of seniors who like to investigate old unsolved crimes as they try to solve a murder happening in their retirement community. 

Interesting: the multiple perspectives. It starts off feeling a little disjointed and becomes more and more comfortable to read as it goes on.

Difficult: several characters independently come to the conclusion that murder is okay, actually, when you do it for the right reasons. Not exactly comforting.