London. 1965. Jack's Back. When young, beautiful women are mysteriously murdered on the streets of 1960s Clerkenwell, roguish D.I. Ted Adlow takes on the case and is drawn deeper into London's colourful underbelly. What he and his team begin to uncover soon echoes an earlier, infamous time for the capital. A time when fear stalked London's streets. Now Adlow must dig deep into his own past to summon the strength and skill to defeat this lethal adversary and save innocent lives. One of them being his own. Trip-Up is an exhilarating London crime thriller, laced with action, humour and suspense.