A hidden adoption, an affair, or a financial crime. The tension builds from the fear of exposure, and the fallout occurs when the truth inevitably emerges.
The hallmark of a great complex family storyline is parallel justification . Both sides have a legitimate, emotionally true perspective. The drama doesn’t come from right versus wrong, but from right versus right. When you understand why the "toxic" family member does what they do—even if you don't agree—you’ve transcended caricature and entered tragedy.
In the best family dramas, no one is pure evil. The overbearing mother genuinely believes she is protecting her child. The rebellious son genuinely feels suffocated.