Good luck Charlie: The curious case of Mr Dabney

PJ and Gabe think that their neighbor Mrs. Dabney has killed her husband, Mr. Dabney, and they try to prove it, while babysitting Charlie. Meanwhile, Teddy becomes jealous that her best friend, Ivy has become texting buddies with Amy, which Teddy thinks is a bad person, so she decides to spend time with Ivy's mother, Mary Lou Wentz who is very boring.