While the rich solve their problems, the poor grab any opportunity for survival.
A girl named Marta is looking for a job to treat her mother. One evening, she receives a message with an unusual job offer. The Sangwit family is hiring a housekeeper for Lady Isara Sangwit, the eldest daughter and heiress of the Infinity Life company.
As the story progresses, Marta becomes close to Lady Isara and her sister Lady Savika. She is sympathetic to both, but she truly loves only one of them. Unfortunately, the beginning of a forbidden relationship does not bring her the desired joy and satisfaction. Marta learns that Lady Isara is engaged in an unusual business. When she realizes all the risks and illegal actions on the part of the woman, this horrifies her. Meanwhile, Lady Savika tries to convince the girl that she should take a sober look at the situation. Each of them begins to think about their lives and look at the situation from a different angle. Inevitable events finally change the relationship between them, forcing them to think about what is really more important to them. Ultimately, they will have to endure a difficult lesson of fate. The question will be whether love will be able to help them along this path or will only make things worse.
Fate has connected people from completely different worlds. Will their acquaintance become salvation or destruction? While love, like poison, imperceptibly penetrates hearts, life continues to throw them new trials.