Half & Half Sezon 4 rozpoczął się na stronie UPN w dniu lundi 19 septembre 2005, jest to obecny sezon, obejmuje on na razie 22 odcinków.
Essence Atkins and Rachel True star as half-sisters Mona and Dee Dee, who have only one thing in common: their father. Growing up separately, these two virtual strangers suddenly become neighbors in the same San Francisco apartment building, and experience the challenges of sisterhood for the first time. Two half-sisters living under one roof with one very big problem – each other!