A Thorne's Bite

Katherine Thorne is the usual college graduate- she now works as an accountant, and carries a completely regular, mudane life.
Only, that she also has a side job as a dominatrix, better known by her clients as mistress Evelynn.
she enjoys putting men under her heel, and keeping them there. she ventures through life, with it being her only enjoyment, until Thomas- a mysterious, new submissive of hers comes in and makes her question how strong she really is.

Thomas is a light-hearted guy who is completely immersed in katherine's whole being, but is that all there is to him? He appears to be a completely different person at times, confusing katherine. That other person seems to want katherine to surrender to him.
Will he be able to get into katherine's cold, untrusting heart?