Una mujer se enamora de un hombre que arrastra una obsesión escalofriante. La nueva novia del empleado de una cafetería lo agobia. Una mujer se enamora de un hombre casado.

La vida de una mujer de negocios da un giro radical cuando contrata a un antiguo deportista. Un hombre oculta una obsesión salvaje. Una mujer encuentra a su media naranja.

Un hombre padece por su novia, obsesionada con el dolor. El retorno de una ex provoca tensiones en un matrimonio. Un obrero le da un nuevo significado al dicho "el amor hiere".

Un hombre se convierte en prisionero del amor. Un marido se entera de un secreto de su esposa. Una joven descubre que enamorarse de un príncipe puede derivar en un problema real.

Una mujer se niega a aceptar que su ex la está aterrorizando. Por otro lado, una mujer investiga a un antiguo amor. Además, un hombre establece una relación con su entrenadora personal.

Un camarero en enfrentado por un cliente trastornado que se niega a aceptar un no por respuesta; regalo de la esposa sacude su matrimonio; un hombre se enamora de una chica jugadora con una inclinación por el dolor.

Un vendedor se enamora de una compañera excesivamente ambiciosa. Una mujer se enamora de un vecino que tiene una obsesión antinatural. Un soltero protagoniza una situación comprometida con una belleza sureña.

La obsesión sexual de un trabajador da un giro peligroso a una relación. Además, un encendido romance en un parque para perros toma un giro poco saludable. Por otro lado, dos mejores amigas se enamoran de hermanos de pasado turbulento.

Victims' rights activist John Walsh returns to weekly TV as host of a documentary-style investigation series. Walsh details stories of ongoing cases involving fugitives, with the intent of expanding searches outside the United States. Interviews with victims, loved ones and law enforcement accompany new leads in each hourlong episode, giving the public information to facilitate the capture of suspects. Walsh, a spokesman for the National Center for Missing & Exploited Children, hosted the series "America's Most Wanted" for 25 years, helping apprehend more than 1,200 criminals.

Based on a U.K. series by the same name, the observational documentary series "First Dates" tracks a variety of couples during their initial meeting, all happening over one night at the same restaurant. The production employs a number of techniques to probe whether the couples are clicking and if the evening will lead to more dates and a possible relationship. Home viewers participate in the social experiment, judging the couples' interactions and whether they possess the undefinable chemistry that makes them a good fit for each other.

Powerfully emotional stories tell of people who have been targets of compulsive stalkers. According to the Centers for Disease Control and Prevention, more than 6 million people in the U.S. are stalked each year, and in most instances, the stalker is someone the victim already knows. The series' hourlong episodes dramatize actual cases through visceral re-enactments and pointed testimony of victims, family members and law enforcement authorities, revealing what happens when stalkers can't have what -- or who -- they want, and stop at nothing to ensure that no one else can either. The chilling accounts probe the mechanics of an obsessive mind and the devastating impact of delusion.

When it comes to dating on the island of Kodiak, Alaska, residents there often say, "The odds are good, but the goods can be a little odd." So six native Alaskan women -- fed up with scruffy men who are preoccupied with hunting and fishing -- cast their love line about 5,000 miles away in the sun-splashed and romance-filled city of Miami. This six-episode series documents how the women trade their rugged boots for high heels and fancy dates with firefighters, football players, personal trainers and cops. The cast includes Tina, who knows what she wants and how to get it; Jenny, who looks forward to ditching long socks and long johns for dresses and makeup; single mom Heather; Sabina, a free spirit who wants to be swept off her feet; quintessential Alaskan tomboy Lacy; and 22-year-old Haley, the youngest on the trip.

Psychological thrillers like "Fatal Attraction" and "Unfaithful" are the inspiration behind this true-crime series, which tells stories about relationships that quickly spiral into living nightmares. Each hourlong episode is a mini horror/suspense film that depicts actual events -- seemingly innocent encounters that end up changing the course of the participants' lives forever. Viewers see the evolution of each relationship and the escalation of extreme behavior, from a refusal to let go to a web of lies and betrayals, dangerous obsessions, scandalous affairs, stalking, and almost always murder.

The holiday season between Thanksgiving and New Year's is often thought of as a celebratory period to spend time with friends and family. That is not always the case, though, as the period is not immune from experiencing the same types of violent crimes that occur throughout the year. This series documents stories of tragedy that struck during the holidays, with firsthand accounts from people who had friends or family members killed during the joyous time. Sometimes the victim is killed by someone close to them, such as a case of sibling rivalry turned deadly, but sometimes the killing is done by a stranger who interrupts a holiday gathering with gunfire.

From blushing brides turned cold-blooded killers to smitten grooms with shocking dark sides, "Fatal Vows" examines the criminal psychology behind deadly divorces. Guiding viewers through actual stories of love gone wrong are psychotherapist Stacy Kaiser and forensic/clinical psychologist Dr. Brian Russell, who examine each couple to better understand how the marriage turned from flawed to fatal. Stylized re-enactments are supported by interviews with family, friends, law enforcement, and potential victims of the crime, while Kaiser and Dr. Russell provide analysis on unions that break down until divorce and murder collide.