Black Marigolds is a drama steeped in literature. Following writer Ryan Cole and his wife Kate as they move to an off season vacation home on a frigid lake in Northern California so that Ryan can finish his new novel. At first everything is perfect for two people who need only each other to be happy. But soon Kate begins to notice Ryan forgetting things, and as his frustration grows so does her concern for him. While he refuses to seek help, he becomes increasingly volatile and unpredictable. Finally it will be up to Kate to choose between the pleasant past or the terrible future.