She has sold feature film scripts to Universal, Disney, Twentieth Century Fox and Sony Studios before moving into the field of television. She created "Savannah," the firstone-hour drama for the WB Network (now The CW), followed by the long-running series "Charmed." The 2018 re-boot of the original "Charmed," now heading into its third season, was also created by Constance. 

She was a writer and Co-Executive Producer of the televisionseries: "Instinct," based on the novel "Killer Games" by the award-winning novelist James Patterson, and was a writer and Executive Producerof "Royal Pains" for the USA Network.  Other television shows she has written and produced include: "The Fosters," "Starter Wife," "In Plain Sight," "Eureka," "Ed,"  and "Judging Amy," as well as writing and producing for two of David E. Kelley's award-winning shows: "Boston Public" and "Ally McBeal."