Despite being thrown into jeopardy at the last moment by groom Aaron’s back injury and Susan cancelling as celebrant, everyone’s excited as Aaron and David’s Big Day finally arrives.

The only downer is Aaron’s brother Tyler can’t be there, since he is serving a prison sentence after confessing to the murder of his hated biological dad Hamish last year. But things are looking up when Aaron meets a curious character (played by Magda Szubanski of Kath & Kim fame) in The Waterhole who offers to replace Susan as the wedding celebrant.

As the ceremony gets underway, Susan is curious to see who has replaced her and is not amused when the eccentric celebrant turns her heartfelt wedding speech for Aaron and David into a comical poem! But Susan’s day takes another unexpected twist when the celebrant turns out to be Karl’s long-lost biological half-sister Jemima Davies-Smythe! What’s she doing in Erinsborough?

Meanwhile, Terese decides to stay away from the wedding celebrations because of her confused feelings for both ex-love Paul and his son Leo. But when Leo arrives at Lassiters to help investigate some vandalism to one of the hotel rooms, he and Terese finally find themselves giving into their forbidden feelings…

Neighbours continues weekdays at 1:45pm and 5:30pm on Channel 5