As Christmas draws near, a well meaning but constantly clumsy father suddenly finds himself in an unusual situation. While taking on the responsibility of looking after a luxurious penthouse in London, he expects a quiet and simple task. However, his plans quickly fall apart when he unexpectedly ends up caring for a lost baby with no clear idea where the child came from or how to find the parents. Trying to balance the chaos of babysitting with the pressure of protecting the elegant apartment from disaster, he stumbles through one mishap after another. Along the way, his awkward attempts to do the right thing turn the holiday season into a series of hilarious and heartfelt moments as he learns what responsibility and kindness truly mean.