Claire has been part of your family for seven years. Warm, dependable, successful, and happily married to your brother Thomas, she's never given you a serious reason to question her—even if the two of you have always enjoyed getting under each other's skin.

Then you see her somewhere she shouldn't be

Later, Claire casually tells Thomas a completely different story about where she was that night.

He believes her without hesitation.

You know she's lying.

The question is... what exactly is your perfect sister-in-law hiding?