AllMovie

Overhearing Lucy (Lucille Ball) say "Hit me -- I dare you!," the Mertzes are shocked -- but not nearly as shocked as when Lucy emerges from her apartment with a black eye. Of course, Fred (William Frawley) and Ethel (Vivian Vance) have no idea that Lucy was merely reading out loud from a murder mystery, nor are they aware that her black eye was the result of a silly accident. Armed with only circumstantial evidence, the Mertzes jump to the conclusion that Ricky has struck Lucy -- and before this and all subsequent misunderstandings are finally ironed out, virtually everyone in the cast is sporting a "shiner."