Lucy sneaks into the Mertzes' apartment to borrow one of Fred's suits so that she can order him a custom-made tweed suit for his birthday. This leads Ethel to think that Lucy is the notorious neighborhood burglar, "Madame X", and she goes spying on her friend to prove it.
| Creator | Bob Carroll Jr. |
|---|---|
| Actor | Lucille Ball, Desi Arnaz, Vivian Vance |
| Country | United States of America |
| Production | Desilu Productions |