50 Movie Death Scenes That Left You TRAUMATISED
37. Andrew Laeddis' Children - Shutter Island
This list has already covered what is widely regarded as the greatest twist in the history of cinema in The Sixth Sense, but you could argue that what happened toward the end of Shutter Island came as just as big a surprise.
Leonardo DiCaprio seemingly played US Marshall Teddy Daniels, who was looking for Andrew Laeddis, the man he considered to be responsible for his wife's death. That's what brought him to the insane asylum at Ashecliffe, though it was ultimately revealed that Edward Daniels was in fact Andrew Laeddis himself.
Daniels was a character created in Laeddis' mind to help cope with the fact that it was he who killed his wife. It's a dark and twisted story, but was sent to another level entirely at the flashback scene showing why exactly Andrew killed her.
After returning home from work one day, he found that his mentally ill wife had taken their three children, Simon, Henry, and Rachel, and drowned them in the lake behind their house. The shock and devastation of such a realisation, and seeing Leaddis desperately and fruitlessly trying to revive three small bodies, was genuinely upsetting. His reaction was to put a bullet in his wife's stomach, as he lost every single person he cared about in the space of a few minutes, and spiralled from there.