1. Episode 1

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

2. Episode 2

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

3. Episode 3

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

4. Episode 4

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.

5. Episode 5

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

6. Episode 6

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

7. Episode 7

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.

8. Episode 8

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

10. Episode 10

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.