Don't Forget Sister

-In the beginning of the video, before the music even starts, an older gentleman in his mid 20's has a dream of his younger sister. The dream is more of a flashback of him and his sister when they were kids, playing in the sandbox. They're happy and joyful then his sister turns to him and whispers "We will always be together." He wakes up sudden from a dream as if he just had a nightmare. His alarm clock is going off and he realizes its time to get ready for work.

-The music begins

-So we see him in his business suite, leaving his nice home. He's about to drive to work in his BMW. In another frame, he's driving down a highway and another car passes him. A little girl looking out the other car window waves at him. The guy smiles but also feels awkward. The little girl's face turns into his younger sister's and she says "Don't Forget Sister, She'll always be true." The guy feels strange and he doesn't know what he saw.

-Between this is the Band singing in a room with only glass windows.

-Our guy is now at his workplace, talking to a few friends from work..Supposedly talking about going to get a few drinks and dance at the club which leads to the next scene. He sees a little girl sitting at the secretary's desk. The little girl turns out to be his younger sister. The guy begins to lose his mind.

-The band continues playing in the glass room.

-Now we see our guy partying at a club with a couple of friends from work. He has a few drinks and few shots of tequila. They're drunk and happy. The guy has to leave to the restroom. As our guy stumbles to find the restroom, he sees an older version of his sister watching him. The guy squints his eyes to make clear of his vision. His sister walks away into a dark hallway. The guy follows her into the darkness. His sister walks into a doorway and the door shuts on the guy. He goes to the door and opens it, revealing a staircase leading to what looks like a dungeoun. As he goes down the stairway, he sees his sister running down another bricked hallway.

-This is where his reality world turns to an imagination.
The guy walks down the hallway. He passes a huge window. Through the window is the band singing. He looks pass the band and sees his sister watching him from the other side.

- The band continues to play. There are burning candles around the glass room. On the ceiling, an air vent blows wind and the burning candles blow out. Now, sand comes pouring from the air vents filling up the room. The band continue playing.
-Meanwhile, The guy runs to the other side to catch up with his sister. His sister stands next to a huge black hole. The guy stands a few feet away from her, watching. His sister turns around and looks at her brother. He walks up to her.
-The sand fills up the glass room but the band still plays. At some intense part of the song, the glass room breaks and shatters. Sand spills out into the open like water.
- At the same time as this is happening, the sister falls calmly into the huge black hole. The guy runs into the huge black hole to catch her but he falls in too.
-Towards the end of the song, he reaches for her hand as they both fall into the dark abyss.
-The song ends and the final thing we see is a picture of the two together in their younger years.

TOO ANSWER SOME QUESTIONS
-The guy only has a memory of his sister being young because he had that dream...in reality she's older..
But when he followed her into the fantasy world/ imagination land...She was actually a spirit that was leading him to his death...In the beginning...she says "We will always be together" when they're playing in the sandbox. This ties to the end where they were together when they fell into the black pit. In the video, he doesn't really remember his sister because he's changed and moved on from his home...That's why her spirit came to haunt him...so he could remember who he was.