Many people see alcohol as a way to relax and socialise. But for some, it becomes the only way they can get through the day.
Women especially can feel the stigma of admitting they have a problem with drink, so many struggle in secret.
Meet a mum, student, and city worker - now in recovery - who all know what it's like to be a functioning alcoholic.
If you are affected by the issues in this film, there is help available. BBC Actionline has a list of organisations that may be able to help. Show less