Grey’s Anatomy: The Dark Reason Izzie Saw Denny When She Hallucinated

One of the most heartbreaking and unforgettable storylines in Grey’s Anatomy was that of Izzie Stevens and Denny Duquette, and while the series explained why she started hallucinating him after he died, there’s a darker, more tragic reason for her hallucinations. Medical drama is a popular network TV genre, and one of the most successful titles from this branch is Grey’s Anatomy, created by Shonda Rhimes. Grey’s Anatomy shows no signs of stopping soon, and it has become infamous for saying goodbye to its most beloved characters, who don’t always get good endings.