Two women, both working in a BDSM dungeon, both servicing clients to earn a living, both hoping for true love in the arms of men they've only ever dreamed about. Ursula Meadows, Mistress Shadow by day, longs for the love she feels for her client, a man she's dubbed Beautiful Luke, to be returned. As she goes through her week at work entertaining all the men on her list and giving them what they want, she spends her nights on a mission to make Luke fall in love with her. The contrast between her daily life and her evenings is stark, but she's determined to have the sexy-as-sin man in her bed permanently and not just on the bed in her dungeon. Will she get what her heart aches for, or will Luke, a self-confessed brawler and user of women, find it difficult to stick to just one woman? Klara Woods, Mistress Darkness by day, is a nymphomaniac. She took a job in a BDSM dungeon as the only way she could think of to sate her huge sexual appetite. Madam allows her to give "extras," and Klara is happy with the arrangement until she goes out one Monday evening in search of a man to fulfill her needs and meets one who wants so much more than just sex. They agree they won't have sex until Friday, but it proves difficult for Klara. Every time they meet she can't resist doing something sexual with him, and the wait until Friday becomes intolerable... Along with the knowledge she may have found the only man who can service her needs full-time, Klara has to decide whether, if they make a go of their relationship, she can leave the dungeon and all her clients behind. Is her love for Ben strong enough for her to become a one-man woman? Is Ben's stamina enough to keep Klara sated 24-7? Friday night will be the ultimate test...