A family member is cut off, or everyone simply "steps around" a toxic individual (the "missing stair") without ever fixing the problem.

The difference between the happy holiday photo and the argument in the car on the way home.

Here are four archetypal storylines and the complex dynamics that drive them: 1. The "Golden Child" and the "Black Sheep"

The drama isn't just about the secret itself; it’s about the betrayal of silence . The person who speaks the truth is often treated as the villain for "ruining" the peace. 3. The "Parentified" Child

A family's identity is often built on a lie—a hidden debt, an affair, or a past crime.

In families with addiction, illness, or emotional absence, a child often steps into a caretaking role for their own parents.

The parents may feel a mix of gratitude and deep shame, leading them to lash out at the very child who keeps the family together. 4. The Estrangement and the "Missing Stair"