Darrin is looking for a model for an all-important campaign. On cue, Samantha turns a cat into a Oriental siren named Ling Ling. Everything goes ultimately well, until the photographer, Wally Ames, wants to make a date with her. Samantha and Darrin each try to break them up, but to no avail. Samantha makes Ling Ling come clean about her true nature when she spikes Ling Ling's drink with catnip. Samantha then turns Ling Ling back into a cat, but not before Gladys notices Ling Ling kneeling on the ground lapping milk.