The Samaritans provide emotional support to anyone in despair or feeling suicidal. Their phone number is: 08457 90 90 90 and they are located at 4 Emmanuel Road, Cambridge CB1 1JW.
Further information can be found at www.samaritans.org [1].
Details of further support groups, including drug & alcohol dependency support, can be found under General Contacts,
Links:
[1] http://www.samaritans.org