'Eddie' Ahmed is waiting to be interviewed for a new job. The interview is for a job he never even applied for but Human Resources seem to know what they're doing.

A detective chief inspector from 2006 is investigating a serial killer when he is knocked over by a speeding car. Waking up, he finds himself mysteriously transported back in time to 1973. Initially struggling to come to terms with his situation, he has to come to terms with the old-fashioned technology and attitude of the day, while figuring out how he came to be trapped in the past.

Penny works at a supermarket and Phil is a gentle taxi-driver. Penny’s love for Phil has run dry and they lead joyless lives with their two children, Rachel, a cleaner, and Rory, who is unemployed and aggressive.

Allie Henshall and Gavin Ferraday are partners in love and business. They own Henshall Ferraday hair salon, where Allie's sisters Darcey and Sydney work alongside them. As Allie and Gavin consider taking over a vacant property across the road, they are rocked by the news that a rival hairdresser has bought it. To make matters worse, Allie discovers that the new salon, Blade Runner, is run by her ex, Finn, and his wife, Mia Bevan. Finn fathered the child Allie claimed to have aborted. He left her when he found out she was pregnant, but he's back in town to try and woo Allie.

The wise-cracking Fitz is a brilliant but flawed criminal psychologist with a remarkable insight into the criminal mind.