According to Soaps in Depth, Deimos Kiriakis fell hard for Kate Roberts (Lauren Koslow) shortly after moving to Salem. However, while Deimos was busy romancing Kate, he was also scheming against his brother, Victor Kiriakis. During that time, “Days of Our Lives” fans watched as Deimos shockingly switched the medication of Victor’s wife, Maggie Horton (Suzanne Rogers), which caused her to fall down the stairs and become paralyzed.
Deimos used Maggie’s medical crisis as an opportunity to get exactly what he wanted. He told Victor that he would give Maggie a cure in exchange for his riches. Victor was outraged and began to threaten his young brother. However, he collapsed during the altercation. At that time, Nicole Walker (Arianne Zucker) walked in and was stunned that Deimos wasn’t rushing to help save Victor. However, Deimos was taken aback by Nicole’s resemblance to a woman he once loved named Helena.
Victor survived his collapse, and although Deimos and Kate were in a relationship at the time, he felt drawn to Nicole. Deimos and Nicole eventually became romantic and were later engaged (via Monsters and Critics). However, things took a terrible turn when Nicole found out that her fiancé had performed some devious acts such as switching Maggie’s medication, kidnapping Chad DiMera (Billy Flynn) and Gabi Hernandez (Camila Banus), and ordering Andre DiMera (Thaao Penghlis) to be killed.