A seemingly innocent promotional Facebook advertisement has prompted a slew of theories online, after a woman claims to have seen her dead husband sitting in a restaurant.

An Indian restaurant by the name of Spice Cottage, located in West Sussex in the UK, has been flooded with social media comments after posting a video of their bustling business.

The video shows happy diners tucking into meals as waiters attend to customers in the clip, which ends with a round of applause for the staff.

After the video was shared to Facebook, a woman by the name of Lucy Watson commented a strange question, asking, “How old is the footage? My late husband and his son are on the first shot and he died in 2014??”

A reply from the restaurant said, “Hi Lucy, sorry to hear this. This footage was recorded last week.'”

The post has now amassed hundreds of comments from social media users, who swapped theories about the bizarre mystery.

One person demanded an update from Ms Watson on her husband’s death, while others chose to look on the lighter side as the jokes rolled in.

One Facebook user said, “He wasn’t dead. He was just in a korma.”

Another wrote, “I was there on this day and the flat bread that I ordered arrived after our main course, it was my late naan.”

Both Ms Watson and Spice Cottage have yet to comment further on the mystery.

Image credits: Facebook

This article first appeared on Over60.