The arrival of Grammy Gallagher (guest star LOUISE FLETCHER) brings Frank and Fiona together… with an unstable alliance in their future. Debbie gets an unexpected visitor at her day care when Peggy Grammy Gallagher is dropped off – released on medical furlough. Grammy enlists Frank to help her chase down a debt from Dr. Noah Pitts (guest star ROB BENEDICT), her former meth lab protégé. Steve returns and invites Fiona on a double date where Fiona and Adam (guest star JAMES WOLK) meet Steve and his Brazilian conquest, Estefania (guest star STEPHANIE FANTAUZZI), for lunch. Fiona learns another of Steve's secrets and Debbie reveals the truth about 'Jimmy.' While Sheila plans Karen's wedding reception, Frank explodes when he finds out Karen is the beneficiary to Eddie's life insurance policy. And Sheila kicks him out.
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