A scientist should never cohabit with his annoyingly hot arch-enemy - this leads to fire. Mara, Sadie and Hannah are first and foremost friends, and always scientists. Even though their spheres of activity may lead them to different corners of the world, they can all agree with the universal truth. When it comes to love and science, opposites attract and rivals make you burn...As an environmental engineer, Mara knows all about the delicate nature of ecosystems. They need balance. And leave the thermostat alone. And not stealing other people's food . And other rules that Liam, her disgusting neighbor, an oil lawyer, doesn't know anything about. Okay, well, technically, she's the intruder. Liam had already settled in his aunt's house as some sinister grumbling giant when Mara moved in with him, with his big muscles and mouth for kissing, just sitting on the couch and seducing respected scientists to switch to the dark side. But Helena was her mentor, and Mara is not going to move out and give up her inheritance without a fight. The problem is that to live with someone is to get to know them better. And the more Mara learns about Liam, the harder it is to hate him... and the easier it is to love him.