Holly Madison says Playboy Mansion felt like a 'safe harbor' after she encountered Hollywood's dark side

Holly Madison quickly discovered that beneath Hollywood's glitz and glamour lurked a much darker reality.

The former Playboy Bunny is returning as the host of Investigation Discovery's true-crime series, "Lethally Blonde," which explores real cases where beauty and fame collide with murder and scandal.

The "Girls Next Door" alum told Fox News Digital she wants viewers — especially wide-eyed hopefuls bound for Los Angeles — to recognize the red flags hidden behind Hollywood's allure.