Silvia Spross topless with strap-on scene in A Knock at the Door (2009)(1:40)

A group of medical school students, trying to overcome boredom and somehow entertain themselves, begin to actively experiment with all kinds of narcotic drugs. During the experiment, students stumble upon a certain mysterious drug “Taldon”. Wanting to experience a new high, young people do not hesitate to inject themselves with this new drug. Unfortunately, Taldon has some pretty nasty side effects, causing students to have to deal with a whole bunch of problems that have befallen them. Some of these problems are very real, while others exist only in the fevered imagination of novice doctors. At the same time, a pair of serial rapists-killers are strangely transported from the 70s of the last century. Future doctors begin to die one after another in the most terrible and nightmarish way...