Machin is having a quiet post conference night cap, in a hotel bar, when a chance encounter with three unique strangers, turns into a weekend of sexual depravity. Mistress Taz is a lifestyle dominatrix who owns the submissive Max. The third in the group is a professional Master, who has failed to fulfil Taz's darkest needs. Machin survives the weekend challenge and wins a weekend contract to experience Mistress Taz's legendry brutality, extreme sexual domination, forced feminisation, sensory deprivation and confinement. The contract allows him a period of switching roles, and to capitalise on his control of the devilish beauty, he enlists the help of Max. However, Machin is soon in chains again, learning to endure more pain and subservience at the hands of the sexually wanton Taz, during his epic adventure. The weekend climaxes in a party of likeminded lifestyle Dominatrices and their slaves. The heat is on with a competition event of endurance of pain and sexual torture. Machin has the promise of prolonging his time with Mistress Taz if he can he survive the evening and impress, the haunting beautiful Dominatrix of his darkest dreams.