Teo, a medical student, meets Clarice at a party. Teo doesn't really like people, they're too messy, but he immediately realises that he and Clarice are meant to be together. And if Clarice doesn't accept that? Well, they just need to spend some time together, and she'll come to realise that too.
And yes, he has bought handcuffs and yes, he has taken her prisoner and yes, he is lying to her mother and to his mother and to the people at the hotel he's keeping her at, but it's all for her own good.
She'll understand. She'll fall in love. She'll settle down and be his loving wife.