Under the impeccability of her social manners, the beautiful Philippa hides the curiosity and sharp mind of a born researcher - she even treats her upcoming marriage of convenience with the well-behaved but boring Earl of Castleton with strictly scientific calm. And that is why he wants to know: what is so mysterious happening between the spouses after the wedding on their wedding night? For clarification, Philip turns to the famous rake and seducer Jasper Cross, who, not without reason, considers a real expert in this field. What can come of this? Of course, a charming, sensual and touching story of funny adventures and true, passionate, all-consuming love!