Following the TruFors (2017) online

One night while on a camping short break, Lucius and others were party to a strange incident. All they can remember are: flashing lights, a strong feeling they had alien contact, the group's joint memory loss, red-skin, and a jar of fluid that was retained from their clothes. Since that night, the group have been in constant contact, and have a strong feeling/urge to go back to the place exactly a year after; they believe they are being called back to the place it first happened