On Valentine's Day, a ghost merges with a rose and makes Charlie madly in love with Andy. Mike must overcome his jealousy of his best friend to capture the Rozamour ghost.

Liv discovers that of two evils, sometimes you have to choose the lesser while Freakking, a Viking ghost, makes New Yorkers shiver.

While a ghost, capable of returning what it receives, merges with a cactus, Andy understands that sometimes it is necessary to curb one's ardor in order to break a perpetual cycle of attacks and stinging counterattacks.

Mike and his father swap bodies when they encounter Flip Floop. In his father's shoes, Mike learns an unexpected side of the life of a star.