I Nearly Shit Myself 4

I Nearly Shit Myself #4: Nature has a funny way of doing things sometimes, and it only takes a slight change in an Ecosystem and everything can go to pot. Take parasites for example, they have developed themselves over millions of years, and even use us humans for their own ends. Like the unassuming tape worm. Their reproduction can be quite amazing and the lengths they will go to get what they want, and like all living things, the end goal is to reproduce and multiply, but when humans get involved, it generally does not end well!When Ben and his girlfriend decide to go for a naughty weekend away at a disused reservoir. They should have heeded the warning sign. KEEP OUT. NO SWIMMING. After their weekend is cut short, and they return home, the real horror begins