I recall seeing a film in the 80s that was a sci-fi horror film vaguely to do with genetic experimentation. There was a small creature that had tentacles that escaped and went around causing carnage. This creature was somehow genetically linked with one of the main characters. This is a very vague description but other than that I can only recall two scenes – one where the creature hides in a womans bag and when she is driving, it escapes and wraps tentacles round her face and neck and causes the car to crash. The other is towards the end and a bunch of characters are standing on a floor that collapses and they all fall into some kind of liquid. Other than that there are a number of laboratory based scenes.
Sorry this is so vague, but maybe someone will be able to identify the title from the above description.