The series follows a set of female prisoners, each with her own sorrows. They are guarded by wardens (mostly male and a few female) which sometimes leads to risky situations (like flirting or falling in love for real). The reasons for being behind bars vary: one shot her husband after catching him cheating, another one killed her baby with a pillow and yet another one staged an accident to get rid of her husband who pestered her. Fellow prisoners use each other but in fact, they are all the same: criminals.