Both drama have male and female leads solving crimes and a smart, psychopath killer after one of the main leads. The female leads are both helping the male lead solve crimes. Also main leads in both dramas have special abilities (although it's on the supernatural side for The Girl Who Sees Scents).

The Girl Who Sees Scents is more focused on the female lead who I found much stronger and more interesting than in Love me if you dare, which is more centred around the male lead. The romance is much better and more consistent in The Girl Who Sees Scents.