Desperate Housewives: Season 2, Episode 21

2 - 21: I Know Things Now

Gabrielle and Carlos ask Xiao-Mei to be their surrogate so she can avoid deportation. Ed hires a forensic accountant, who uncovers evidence in Tom's expenses that he may be having an affair in Atlantic City. Betty discovers that Matthew set Caleb up before she poisons him. She locks Matthew in Caleb's old cell as punishment for making her almost murder her son. Edie learns that Susan is Karl's other woman and sets her house on fire. Andrew, still thirsty for revenge, seduces Peter and lures Bree to the scene. The next morning, Bree leaves Andrew on the side of the road.