On April 1, 2017, the n. 24/2017 Gelli-Bianco law became effective, its aim being limiting the so-called "defensive medicine" phenomenon. The first bill was neither straightforward nor judicially flawless, thus complying evenly with the law was not obvious. As a consequence, since 2017 there were several attempts to better clarify it, yet its implementation still appears debatable. Ultimately, the Law has not been a real breakthrough in medical liability, as originally intended by the Legislator. The aim of this review is to outline "lights and shadows" of this Law 5 years after its emission.