The Martingale betting system in roulette involves doubling your bet after each loss to recover all previous losses with a single win. While its straightforward approach is easy to understand, it carries significant risks, such as substantial losses during long losing streaks and the potential to hit table limits or deplete your bankroll. Ultimately, while it may provide a temporary sense of control, the system does not alter the inherent odds of the game, and the house edge persists, making long-term success improbable.