From ABC:

Karl breaks up with Edie, who has no idea that Susan is now the 'other woman,' Lynette tries to help Ed heat up his sex life, Bree finds out that Peter has another addiction, and Lily's father comes back to claim his daughter.

Preview clips:

http://tv.yahoo.com/feature/desperatehousewives.html

Awesome episode. Finally the Applewhite mystery is going somewhere. Big buildup to something.

Poor Gabby. :(

I can't wait til Edie finds out about Susan being the other woman! :p

Ed is an idiot. Loved Lynette's IM's. :lol:

The Bree plot was kinda boring but I loved the donut shop guy yelling "complusive masturbation" and the customer's reaction. :rotflmao:

Feel so sorry for Gabby. She will find a way to get that baby back. Yeah, Applewhite story was awesome. Could this be the end of the road for Caleb? Edie was hilarious!! I think that detective won't find out, but will probably find something else out.