Sunday the Rabbi Stayed Home — Harry Kemelman

As Passover approaches, Rabbi Small contends with infighting, backstabbing, and an actual murder in this New York Times bestseller

As Rabbi David Small's 5-year contract winds down at the synagogue in Barnard's Crossing, Massachusetts, some members of the congregation are plotting to remove him; others are whispering about starting a new temple of their own across the street. When the rabbi gets an invitation to perform Passover services at a local university, he's eager to get away from the bickering and spend a few days on campus. But instead of peace and enlightenment, he finds a murder wrapped up in drug deals and racial tensions.
 
From tuned-out hippies to political zealots, the college is full of potential suspects. Once again it's up to the rabbi to draw on his deductive skills to solve the case -- and avoid getting sucked into the bitter culture war -- before the killer strikes again.