Worried that she's losing her powers, Samantha's lookalike cousin, Serena, decides to settle down to mortal-hood. So that she won't have to bother herself with such exigencies as finding honest work, Serena aims to wed Darrin's wealthiest client, Harrison Woolcott (Peter Lawford). Realizing that such a union would be disastrous, Sam tries to break up the romance, only to be beaten to the punch by one Contessa Piranha (Ellen Weston). Written by Michael Morris, "Serena's Richcraft" first aired on January 22, 1972. ~ Hal Erickson, Rovi