幽灵们被艾莉森体贴的慷慨感动了，于是决定给她一份特别的圣诞礼物作为回报——但艾莉森几小时后就要回来了，他们能及时完成这个雄心勃勃的计划吗...

The Ghosts, touched by Alison’s thoughtful generosity, are inspired to give her a special Christmas present in return – but with Alison due back in a matter of hours, can they pull off their ambitious...