Roman Petrov is her biggest enemy. Ironically, he's also the man she once loved, and the father of her children. Anastasia Ivanova, the leader of the second-largest mafia organisation in Russia, took the reins following her brother's brutal death. After making a reputation for herself as the 'Serpent', people feared her and could not keep her larger-than-life personality tamed. That all changed when she met Roman. He challenged her with all he had, yet gave in to her every demand, as she was his weakness, without hesitation. Roman Petrov is the leader of the largest mafia organisation in Russia, and has a heart as cold as the past that he carries on his shoulders. The 'Reaper' found the only woman who could control him. The one who could break through his exterior and soften him. Softening comes at a consequence when you're known for your ruthlessness. Unable to deal with his feelings, and much to the shock of the mafia community, Roman divorces Anastasia, leaving her with the burden of their two children. Returning to Russia will be difficult after two years for Anastasia, but the state she finds her ex-husband in shocks her beyond imagination. With the entire mafia now on their shoulders, these two must tread the waters of parenting whilst being aware that either one can break the other at any moment. They say opposites attract, but co-existing may cause these two to destroy.

Leonardo Garcia has a secret obsession. As a highly successful university professor, it's unlikely that anything disrupts his perfectly aligned schedule which keeps his compulsive mind rested. Possessive of everything he owns, the intense teacher is deeper than what he shows at surface level. At night, he watches her. Isabel Bianchi. At any given time, he knows where she is. Since their anonymous parting many years ago, unbeknownst to her, he continues watching her from the shadows in fear that he will hurt her. He knows her routine almost as much as he knows his own, so the moment she transfers to the on-campus part of the college he teaches at, his entire plans are thrown off their course. She's a powerful yet sweet woman nearly qualified to work as a psychologist. With a bright future ahead of her, she chooses a topic of interest for her psychology paper: her obsessed professor. Forced to be in close confines, with her probing questions and his short temper, his hidden secrets unfurl in the flickers of the night. This isn't a usual love story. This is a toxic obsession between a man with a past and a woman that's sure to be his future.