Lady Strathgallant is obsessed with her responsibilities to the Strathgallant estate, and to her adopted granddaughter, the beautiful Perdita Sinclair. And she desperately wants an heir for Strathgallant. Determined to see her granddaughter married to a wealthy, connected man, she contrives a plan to bring Perdita to the attention of her nephews. All seems to be going well until a fifth suitor appears on the scene. The romantic Jules Dilebes is determined to have Perdita - but treachery and death plague the Strathgallant household.