While his previous album was analytical and socially critical, Sef now focuses entirely on humanity and what it feels like to be human in this world where everything is coming at you. The clash between human and machine is the central theme of "Sweet Monsters": "It quickly became clear that it had to be both electronic and human; it had to touch both, human and machine. Physical and digital. Your head and the screen." The album features tracks like "Afraid of Everything," "Help," and "Hold Me Tight." "Sweet Monsters" is the extension and successor to "Ik Zou Voor Veel Kunnen Die Maar Niet Voor Een Vlag" (I Could Die for a Lot, But Not for a Flag), for which Sef won an Edison Award for Best Album and 3voor12 Album of the Year.