Murder in Trastevere - Jen Moore Collins

After a decade dominating the expat scene in Rome, Faye Masters has had enough beautiful art, delicious food, and bureaucratic nonsense to last a lifetime. She's just about decided to pack up and head home when a rival drops dead at one of Faye's famous cocktail parties. Rumors fly that Faye was the intended target, but the police think Faye might just be an attention-seeking poisoner. 

Faye refuses to let the cloud of suspicion stop her from completing a self-imposed 25-picture Caravaggio Challenge. Or keep her from assisting friends Maggie White and Thomas Evans on their painting tours of Rome. But when the leads fizzle out and a series of accidents hit close to home, Faye accepts her own life is on the line. She must search for a killer while keeping up appearances at some of Rome's most iconic sights.