In the quiet, carpeted darkness of a movie theater, or the solitary glow of a late-night laptop screen, we lean forward. Our pulses quicken. An ally draws a sword. A spouse opens a hidden account. A best friend whispers a secret into the wrong ear.

In the world of pure entertainment, a loyal friend is a supporting character, but a traitor is a legend.

by pretending he wanted the role himself to fuel their rivalry. The Darker Side of Portrayal

It creates an immediate, high-stakes rift between characters.

When you want maximum dramatic payoff, look for: