Matthew Heikkila has always had a rocky relationship with his parents, but he has a plan on how to deal with them. On a cold November day, he murders them in their own home -- and is determined to keep the nightmare going for his girlfriend, Linda Perez.

When Peggy Kinke returns to school to pursue her dream of becoming a doctor, she catches the eye of fellow student Patrick Kennedy. But their relationship leads them down a terrifying path of jealousy, obsession and murder.

2006, Pocatello, ID. It's Cassie Jo Stoddart's first weekend house sitting by her herself, and she's determined to do a great job, but the high school student's weekend turns into a real-life horror movie when unexpected visitors terrorize the home.

On a rare day off from work, single mom Carrie Caudill and a friend embark on a well-deserved girl's night out. But out of nowhere, an unexpected confrontation puts Carrie on a dangerous collision course with a calculating and sadistic madman.

Tammie Craycraft Smith, a 30-year-old recent divorcee, finds herself working two jobs to make ends meet. But Tammie's trusting nature and desire to be loved leave her vulnerable to deception, betrayal, and deadly consequences.

With her good looks and sunny demeanor, doctor's assistant and part-time model Christine Kent attracts her fair share of admirers. But after one encounter ignites jealousy and obsession, Christine is blind-sided by the devastating consequences.

Dana Point, CA. 1988: Weak, tired, confused, and deathly ill, Janet Overton, a wife and mother, was once the picture of health until she suddenly drops dead in her own driveway. Detectives must determine if her death was due to an undiagnosed illness or cold-blooded murder.

After a bad breakup, single mom Joi Partain finds love again with Jonathan Pearson. But after the couple moves to Ocala, Florida with Joi's daughter, troubles in their relationship spiral until they hit a bloody, brutal point of no return.

Single mother Barbara Nunn relocates to Florida, but she struggles to find her way. After she lands a job at a local diner, it appears her troubles are finally behind her. But then one night, a surprise confrontation with customers ends in murder.

Shelia Dates and her daughter Regina are more than blood relatives - they're best friends and roommates too. But one morning, their lives are irrevocably changed the moment two unexpected guests appear at their doorstep.

Debbie Puglisi is enjoying life with her husband of nearly 25 years, Nino, in their new dream home. But when an unexpected visitor drops by the neighborhood, Debbie's whole world becomes her worst nightmare in a matter of minutes.

Jeanne Smith and her two daughters, Marie and Anna, make for a tight-knit, family trio. But when Jeanne and Anna go looking for love in all the wrong places, it ends in heartbreak, lies, and murder.

Devastated by personal loss, Heather Kelso finds a fresh start in a familiar place and falls for charismatic Garry DeJesus. But jealousy and other friendships will ultimately drive a deadly wedge straight into the heart of their relationship.

When Martha Brailsford goes out sailing in Salem, Massachusetts, and doesn't return, her friends and family immediately suspect that something terrible has happened.

Everyone loves 25-year-old graduate student Sandy Jeffers, but little does she know that one man is completely obsessed with her. When she finally comes face to face with her stalker, the events that follow are twisted, torturous, and ultimately fatal.

When Natalie Purdie moves from New York City to Norfolk, Virginia, she quickly makes new friends both on and off her high school dance squad. But as Natalie's life revolves around dance, she has no idea a violent obsession revolves around her.

With her big heart and generous spirit, Michelle Cable is the rock of her family; her kids Billy, Jessica, and Josh are the center of her world. But her soft spot for troubled men leaves her vulnerable to evil intentions and deadly consequences.

Two teenagers in love go missing from rural Logan, OH, and ten days later they both turn up dead -- brutally hacked to bits. The crime tears the small town apart, and it remains unsolved for 25 years until the shocking truth comes to light

Reeling from the death of their mother in 1986, teenagers Annie and Jessica Andrews perform a seance to see if they can contact her spirit. Soon after, strange things start happening in their house in Pepperell, MA.

Westfield, NJ - an affluent suburb just outside the bustle of New York City, is home to picture-perfect homes and families alike. In the grand home of John List and his family, a true monster hides behind the stately facade.

Reggie and Carol Sumner live in Jacksonville, FL, where the 61-year-old retirees have recently settled into a more relaxed lifestyle. But when they mysteriously go missing after a visit from a former neighbor, investigators have to wonder if they left on their own.

When Denise Sam-Cali and her husband, John Cali, discover that someone has broken into their Allentown, PA home in 1993; they think they know who did it. One week after the break-in, Denise comes face to face with the intruder -- and she has no idea who he is.

When a masked robber is interrupted by both the daughter of the house, Sarah Harris, and her father, Ivon, the intruder goes to horrible lengths to cover up his crimes.

When Chanin Starbuck comes home to find her house has been vandalized, she fears her ventures in online dating are to blame.

After Lois Pearson turns down a date with her neighbor Jeffrey Maxwell, she thinks that's the last she'll see of him on her rural Texas land. Six years later, he's back, and it's clear he's still holding a grudge.