Nurse Gemma Wallace is held suspect when opioids go missing from the neighborhood clinic where she works. She's questioned, but never arrested or charged because the police have no solid proof and an abundance of reasonable doubt. Still the suspicion hangs over her like a sword. This is just the tip of an iceberg that sends her life sinking around her.

In a moment of utter hopelessness, Gemma considers ending it—all of it. She's pulled back from the edge by a woman who's been to that same edge more than once. Through Collie, she meets the Mountain Mamas—four women who show Gemma the power of friendship and the truth that no one is free from doubts—reasonable or otherwise.

Gemma soon realizes the burden of proving her innocence falls to her. While she searches for the truth of what happened that day, other truths are revealed. Truths that erase doubts about herself that she's carried for years.