A couple's dream holiday turns into a living nightmare when they realise that they don't even know each other.
"Missing" tells the intriguing story of Scottish couple David Telfer and his ex-model wife Louise, who embark on a Mediterranean cruise to celebrate her recovery from serious depression.
But as they sail across the high seas onboard their luxurious cruise ship the American Gem, doubts begin to creep into David's mind with regards to their relationship.
He suspects from Louise's erratic behaviour that she is hiding something from him, and believes that she may be harbouring dark secrets.
His suspicions are heightened yet further when they return to the beautiful city of Barcelona and his nightmare really begins.