Arrested - suggests that you feel you were stopped or restricted from doing something. Alternately, it could also suggest that you feel guilty about something.

Half-Way House - A house usually always represents you, or rather 'the self'...your body and the attributes of your personality.
They symbolize our emotional and psychological selves. All of your experiences, stages of development, and parts of your conscious and unconscious life may be represented by that house. The house may be representing issues concerning a particular dilemma in your life, or it may be more general and comprehensive. The rooms represent a particular aspect of yourself or a particular relationship.
Unknown house - suggests aspects of yourself you are not familiar with, and new experiences.
Because it is a half-way house, suggests you feel you are in a temporary situation.

Two nice women and feeling the presence of another person/inmate :
People - Usually our dreams are filled with people. We dream about our families, our friends, our neighbors, and our classmates. We dream about strangers, colleges, famous people, teachers, and, at times, our supposed enemies. They depict your human attitudes, strengths, and anxieties. They show the way you relate to yourself and others. Each dream is very special and carries its own unique message. When interpreting this dream with people in it, consider all of the details and the feelings in the dream.
If the person is known to you, or reminds you of someone you know.. think about your relationship with him or her, and the issues that the dream has brought up, or how you relate to the person that is being represented.
Strangers:: - If these people are totally unrecognizable (they don't remind you of anyone you know)... they would represent different, and unknown, aspects of yourself. They are extensions and projections of your own subconscious, and personality.

Group of People - depicts how you meet the pressure of accepted social 'norms', and public opinions.
A large crowd, or group - suggests an enormous involvement you have in a current issue. Also, your relationship, or feelings, about the social environment you live in.

Being in front of a group, large or small, we have a feeling of being looked at...as though we are 'on display'. How you relate to that, may be depicted by what you are doing in front of the dream group.
In this case you feel as though you are trying to decide something. That suggests that you need to make a decision about something, and you feel that 'everyone' is waiting on your decision....to see what you are going to do, before they take action. Or, that you feel everyone is 'counting on you' for something.

Plastic cup - represents nurturing, sustenance, and the womb. The cup may also signify healing, and rejuvenation. Alternatively, it indicates a transcendence into a realm of higher consciousness.
Because it's plastic suggests that you feel that something having to do with the cup symbolization is temporary or 'plastic' (not real)...(IE: You feel a temporary respite or rejuvenation..., that the help you are receiving from someone is temporary, or that they are a 'plastic' friend, only befriending you for their own selfish gain).

Stone beads(spilled some) -It doesn't matter what the average or 'actual' symbolism would be. Because you felt that these stones represented time, then that is exactly what they represent. Because you spilled them, it may suggests that you feel you are either wasting time, losing track of time, or running out of time.

Cemetery/Graveyard - A cemetery is a collection of dead organic matter. It's a sad and depressing place that doesn't reflect any joy, and reflects even less hope. If someone close to you has recently died, it would be normal for you to have dreams about graveyards and death. The graveyard in your dream may be a reflection of your mood or unresolved grief. It may literally represent sadness that comes from losing someone that you love.
However, if this dream is coming up and there has been no death in the family, consider your feelings in daily life. If you are feeling depressed or helpless in any way, look inside yourself and make attempts to increase your self awareness and your spiritual identity. It could represent things which require deep thinking and are not 'on the surface'. Graves could also symbolize the unconscious, and it could represent your past and long-gone experiences.

Staff dead(ghosts) -  In general, ghosts symbolize aspects of yourself that you fear. This may involve a painful memory, guilt, or some repressed thoughts. You may be afraid of death and dying. Alternatively, ghosts are representative of something that you feel is no longer obtainable or within reach. It indicates a feeling of disconnection from life and society. This dream may be a calling for you to move on and abandon your outdated modes of thinking and behavior.
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Are you facing a big decision?
Do you feel as though you are running out of time, or options?
Are you trying to find a solution for something....even if it's a temporary one?
Have you been feeling 'out of touch' with people, or someone specific?
Do you feel depressed, or in need of a rest?
Are you feeling guilty for something you did, or didn't do?
Is there someone in your life that you feel is a 'fair-weather friend', or a 'false friend'....one who only seems to show up when they want something, or is pretending to help you in order to help themselves?

I sure hope I could give you some insight. Best wishes!