The Good Wife is about to go very bad again.

On next week's "Marthas and Caitlins," Dylan Baker will reprise the role of Colin Sweeney, a man serving time for killing his wife. Look for Alicia to actually work with Celeste on a case that doesn't just bring her in contact with Sweeney, but forces her to ask for the murderer's help.

What does he want in return? Read through our review of the most recent Good Wife episode and then find out in the official CBS trailer below:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.