I had the misfortune of missing the first part of this mini-drama. How foolish do I feel now? Incredibly. From what I have seen though, wow! Brief summary: woman dates man, woman dumps man, spurned lover tries to get his own back any way he can. I had previously seen David Tennant in Casanova and found him to have an irresistible charm.Tennant's television history as I know it was based in comedy and so I was intrigued to see him starring in a thriller.However, he did not fail to impress me in Secret Smile. His portrayal of a spurned lover hell bent on revenge was both captivating and chilling. One can see how charming he is but one constantly has to remind oneself about what he really is. The supporting cast are amazing. I did not think Claire Goose would be able to make the transition from soap acting in Casualty to such a serious drama. However, I was pleasantly surprised and her role showed how easily people can be controlled and manipulated. Furthermore, I admit I was not enamoured with Kate Ashfield until now. You were with her every step of the way, feeling her anger and frustration. It is not very often that such a suspenseful drama that actually holds you to your seat comes along. Television nowadays has become highly predictable but I am pleased to say that this was not. It was a superbly acted and directed piece. Best performance must go to Tennant. He was able to capture and exemplify how easy it is to dominate one person and how deep an impact that it can have.This is highly prevalent in a society where stalking and domestic violence remains taboo. I was afraid that Tennant would lose his edge with going to mainstream television, but if this is anything to go by, I had nothing to worry about.