Martha Beck, an obese nurse who is desperately lonely, joins a "correspondence club" and finds a romantic pen pal in Ray Fernandez. Martha falls hard for Ray, and is intent on sticking with him even when she discovers he's a con man who seduces lonely single women, kills them and then takes their money. She poses as Ray's sister and joins Ray on a wild killing spree, fueled by her lingering concern that Ray will leave her for one of his marks.
The followers of a charismatic cult leader set out to murder a pregnant actress.
Driven by desire and desperate for self-love, Coral and Nicolás will abandon their past lives in a journey surrounded by murder.
Emma and Leo are two siblings who live alone, she just wants to be free and plans to go out to a party secretly, but when Leo finds out, he will take his overprotection to unimaginable levels.
A couple plots to murder a random stranger just for the thrill of it, but things turn ugly when one of them decides not to go through with it.