Ryan Murphy's Netflix anthology series Monster, which has run since 2021, dramatises high-profile American murderers with varying creative success across its seasons. The article ranks the seasons based on their execution, noting that whilst each has delivered compelling performances and storytelling, certain creative choices have undermined their impact.

This ranking article examines individual seasons, with particular focus on Season 3 (Ed Gein) and Season 4 (Lizzie Borden). Season 3, despite stellar performances from Charlie Hunnam and Laurie Metcalf, ranks lowest due to excessive pop culture tangents exploring how Ed Gein inspired Hollywood horror films, pulling focus from the central character and creating tonal inconsistencies, including an incongruous surreal dance sequence. Season 4 made history by featuring the series' first female killer in Lizzie Borden, moving beyond the familiar nursery rhyme associations.