Sally4Ever follows the life of Sally, a soon-to-be promoted marketer who, for 10 years, has lived a comfortable and dull suburban life with David. But on the night he asks her to marry him, Sally has a crisis and embarks on a wild affair with Emma, a seductive, charismatic, boho actress, singer, musician, poet and author.

Before Sally knows it, Emma has moved in, rearranged the furniture and her life. Is this really what Sally wants, or has she made a mistake?