Rake - Season 1 Episode 13
Mammophile

Keegan must use a highly unusual tactic to defend a new client and his mother, who both confess to committing the same murder in order to protect the other. Meanwhile, as a result of Finns school auction, Keegan is stuck with Louis, an annoying boy whose father was the only bidder on the "A Day with a Lawyer" auction item. Also, Keegan discovers that Mikki is dating someone he knows.