Five months after jovial London resident Sinead Healy disappears, her family finds law enforcement’s prime suspect impossible to accept.

Investigators scour CCTV footage in their search for a Buckinghamshire student last seen returning home in a taxi after celebrating final exams.

A divorced mother finds a boyfriend - but his dominating and abusive personality soon raises alarm bells and isolates her from her family members.

After a week passes with no word from a Manchester woman to her family, a burnt body is discovered in an obviously staged, smoke-filled crime scene.

A successful London automotive businessman seemingly fails to return from a holiday to France with his girlfriend — a jeweler with royal connections.

A blatant lie alerts a woman's family that the jet-setting, controlling boyfriend who troubles them is deceiving them about her whereabouts.

When a seven-year-old child suddenly vanishes, suspicions fall on his mother's boyfriend — who was last seen playing video games with the boy.

Authorities discover that the disappearance and murder of an Ipswich woman is linked to another local killing, and to a hard-drinking social group.

An 80-day search for a young mother in Durham ends in a tragic discovery and two painful trials in which the victim's character is maligned.

The Sikh community in London reels at the bizarre murder of a prominent TV producer whose body is discovered bound in the trunk of a burning car.

Evelyn Lund's first husband Arthur, a successful businessman, had died of cancer, leaving her a wealthy woman. Within 18 months, she had fallen for the charms of Robert Lund, a divorced tree surgeon. Her three daughters disapproved of the match, not least because Lund was living in a caravan when they met, and they thought he was only interested in her money.

Adam Alexander

Young mother of three children, Natalie, was killed by her boyfriend Paul Hemming in their family home whilst her three children slept upstairs. He had a history of coercive control. Their 6-year-old son witnessed Natalie's body wrapped in a rug in the lounge and it was his evidence that was used to charge him.

Mihrican ("Jan") Mustafa, a 37-year-old Turkish-Brit mother disappears.

Joanna Parkes from the Isle of Man, against the advice of everyone around her, marries a narcissistic British Airways pilot.

Carol Taggart, a mother in Fife, Scotland

22-year-old insurance clerk Helen McCourt was returning home from work in Liverpool before going out on a date with her new boyfriend that evening. She got off the bus on Rainford Road in Billinge - just 500 yards from her home - and went missing.

17-year-old Jayden Parkinson met Ben Blakley when she was just 15 years old through her friendship with Ben's younger brother. Jayden and Ben started a relationship when she was just 16. She had been living with her mother Sam but moved to a hostel which provided emergency 24-hour accommodation for 20 homeless young people, aged 16-25.

Janet Muller was a bright and fun loving 21-year-old German exchange student studying at Brighton University. She had no previous history of mental illness but became unwell ahead of her final exams, and in March 2015, she was admitted to Mill View hospital in Hove after being found by the police at a bus stop in her night clothes.

Jamie Lavis, an 8-year-old boy in Manchester, England

In December 1988, 22-year-old Lorraine Benson arrived at Raynes Park tube station after going to a work Christmas party. She'd arranged to meet her friend Peter, but he wasn't there as planned. Peter was due to move to Australia the following day. Lorraine called Peter's mother to ask where he was, and his mother told her that he wasn't back from meeting friends yet.

School girl, Danielle Jones, aged 15, was last seen on the morning of June 18th, 2001 near her home in East Tilbury, Essex. Like hundreds of thousands of other children that day, she was on her way to catch the school bus. But Danielle never got on the bus and didn't arrive at St Clere's School.

Mark Cummings, an 8-year-old boy vanishes from a high-rise estate in Glasgow, Scotland

Joe Pooley, 22, of Ipswich, England disappears.

Debbie Griggs, a pregnant mother of three boys in Kent is taken from her children.