God, That's Good
Season 3 | Episode 319 | Aired 04/21/2007
Parker sneaks into Mrs. McCluskey's freezer for a popsicle. He finds the body but doesn't tell anyone. He asks Lynette if they can go see Mrs. McCluskey in the hospital. She sends Lynette off an errand and privately tells Parker she had a very good reason for keeping her husband in the freezer and makes him promise to keep the secret.
But the secret comes out when a neighbor looks in on Mrs. McCluskey's house while she's away. The body is discovered and Mrs. McCluskey is arrested.