Actress Chitrangda Singh, who is gearing up for her upcoming psychological thriller `Gaslight`, has revealed that her co-star in the film, Sara Ali Khan, had a rather unsettling experience on the sets of the film during the shoot.

While the cast and crew enjoyed shooting at Wankaner palace, there was something off on the sets too. Sara Ali Khan decided to ditch her commute and stay at the palace to save her time, that`s when she experienced something that the film`s team is still trying to wrap their hands around.