Three students murdered at century-old boarding school. Killer drowned himself; body never found. On 100th anniversary of killings, student researching incident vanishes, along with others, as dark presence haunts school.
| Actor | Role |
|---|---|
 Rebecka HemseSara | Sara |
 Jesper SalénFelix | Felix |
 Jenny UlvingTherese | Therese |
 Peter EggersLeo | Leo |
 Rebecca FergusonAmanda | Amanda |
 Daniel LarssonMåns | Måns |
| FFrans WiklundYngve | Yngve |
| EErik HultqvistMarkus | Markus |
 Anders EkborgThomas | Thomas |
| KKerstin SteinbachLaila | Laila |
 Stig EngströmProfessor Ek | Professor Ek |
 Anders Ahlbom RosendahlBengt | Bengt |
 Bojan WestinAnna-Lisa | Anna-Lisa |
 Tommy AnderssonThe Father | The Father |
 Kjell BergqvistPeder Weine | Peder Weine |