Triangle

The film "Triangle" is a 2009 Australian psychological thriller directed by Christopher Smith. It begins with Emily Foxhill (played by Melissa George), a young woman, setting sail on a yacht with a group of friends off the Australian coast. Among them is Jess (also played by Melissa George), a fictional doppelganger with a troubled past. At first, the atmosphere is carefree and relaxed as they head to a remote island for a party. However, the group soon becomes aware of some unease among them. As Jess struggles with the group's tensions and the ominous premonitions, she starts feeling uneasy about their situation. Emily Foxhill becomes increasingly detached and withdrawn from her friends and the world around her, further exacerbating the tension. After a seemingly minor incident on the yacht, Emily Foxhill sets off alone in a small inflatable boat to escape the claustrophobic atmosphere of the yacht. But as night falls, she becomes lost in the dark waters. With limited supplies and facing certain doom, Emily resists her fate with all her willpower. Miraculously, Emily wakes up the next morning to find herself on a deserted beach. Stumbling through the remnants of the party and finding the skeletal remains of her friends, Emily instantly realises the horrifying truth that she has been transported to an isolated past where her friends had been on the yacht before meeting Emily. As Emily continues searching for her shipmates, she meets Jess Foxhill, who claims that she was on the island when her doppelganger disappeared. Emily soon notices eerie and identical environments on the island between the triangle of time and space shared between the individuals - past/Present and the "other" one between group of individuals who have been there previously at other respective times they spent together. As Emily unravels Jess's identity being Emily's counterpart throughout the past, it turns out that they're twins. Emily soon starts seeing Jess' point of view throughout their different timelines happening almost simultaneously with Emily, while revealing in pieces a timeline of friendships forged and lost through both friends in an instance as the movie follows in reverse order. Emily slowly realises she is doomed in a triangle time-based scenario, a disorienting labyrinthine cycle creating her self-inflicting fatal prophecies. Tracing down clues of foreknowledge between her and Jess points out Emily uncovering the only clue about why her friends killed Jess before they parted ways. It is not long before she comes to understand she is trapped in multiple phases of identical loops throughout her life that is repeated again and again in what's referred to as a deadly triangle, ultimately indicating these dreadful circumstances shared with the people she befriended throughout the scenes that occur in parallel processes between her past self and her duplicate now unraveling behind her. Through an exchange showing Emily with her duplicate Jess finally being the central figure of this unending nightmare, as she came to believe she may only salvage back time for her past timeline by sacrificing herself this one in particular. The viewer slowly starts realising there is more to the time-bending event taking place before Emily or the body trapped at sea from the initial situation with her friends.