Dragons' Den 17x10

Tonight, a colourful hair entrepreneur offers one Dragon a new look - and all of them a new investment opportunity. A cheesecake maker has sweet dreams of a cash boost for his franchise model, but will his pitch be the stuff of nightmares? And a husband-and-wife team hope their electrical invention will make sparks fly in the Den as rival Dragons Deborah Meaden and Sara Davies line up to try it out.