Susan is having trouble sleeping. Carlos, too. They end up taking a late night stroll together. Mike gets suspicious when he catches them acting chummy. He's also not thrilled to learn his wife must do community service after Carlos had to pick her up from the police station. Mike doesn't mind Susan being friends with a guy. It's all the secrecy that has him upset.
Carlos joins Susan during her community service project. When they catch sight of Mike driving by, the guilt-ridden friends hop into the back of a van. There's never been anything adulterous happening between Susan and Carlos, but the close quarters they suddenly share gives them pause for thought. The two old friends quickly snap out of it. They step out of the van where Mike greets Carlos with a fist to the face. Ouch!
Bree thinks Chuck wrote the "I know what you did" letter. She needs to be sure. While snooping through her handsome police detective's briefcase, Bree comes across a photo of her hand and a sealed envelope bearing her name. Gaby thinks Chuck may have been trying to match her hand to a print they found at the crime scene with the photo. Now they just need to know what's in that envelope.