diff --git a/pynamodb/models.py b/pynamodb/models.py
index 3e56c5787..d3bb6d13a 100644
--- a/pynamodb/models.py
+++ b/pynamodb/models.py
@@ -478,11 +478,16 @@ def from_raw_data(cls, data):
         hash_keyname = cls.meta().hash_keyname
         range_keyname = cls.meta().range_keyname
         hash_key_type = cls.meta().get_attribute_type(hash_keyname)
-        args = (mutable_data.pop(hash_keyname).get(hash_key_type),)
+        hash_key = mutable_data.pop(hash_keyname).get(hash_key_type)
+        hash_key_attr = cls.get_attributes().get(hash_keyname)
+        hash_key = hash_key_attr.deserialize(hash_key)
+        args = (hash_key,)
         kwargs = {}
         if range_keyname:
+            range_key_attr = cls.get_attributes().get(range_keyname)
             range_key_type = cls.meta().get_attribute_type(range_keyname)
-            kwargs['range_key'] = mutable_data.pop(range_keyname).get(range_key_type)
+            range_key = mutable_data.pop(range_keyname).get(range_key_type)
+            kwargs['range_key'] = range_key_attr.deserialize(range_key)
         for name, value in mutable_data.items():
             attr = cls.get_attributes().get(name, None)
             if attr:
diff --git a/pynamodb/tests/data.py b/pynamodb/tests/data.py
index a9edb0459..0728ba545 100644
--- a/pynamodb/tests/data.py
+++ b/pynamodb/tests/data.py
@@ -179,6 +179,20 @@
         }
     }
 }
+COMPLEX_ITEM_DATA = {
+    "ConsumedCapacity": {
+        "CapacityUnits": 1,
+        "TableName": "Thread"
+    },
+    'Item': {
+        'date_created': {
+            'S': '2014-02-03T23:58:10.963333+0000'
+        },
+        'name': {
+            'S': 'bar'
+        }
+    }
+}
 
 GET_ITEM_DATA = {
     "ConsumedCapacity": {
@@ -231,3 +245,34 @@
         ]
     }
 }
+
+COMPLEX_TABLE_DATA = {
+    'Table': {
+        'ItemCount': 0, 'TableName': 'ComplexKey',
+        'ProvisionedThroughput': {
+            'ReadCapacityUnits': 2,
+            'WriteCapacityUnits': 2,
+            'NumberOfDecreasesToday': 0
+        },
+        'CreationDateTime': 1391471876.86,
+        'TableStatus': 'ACTIVE',
+        'AttributeDefinitions': [
+            {
+                'AttributeName': 'date_created', 'AttributeType': 'S'
+            },
+            {
+                'AttributeName': 'name', 'AttributeType': 'S'
+            }
+        ],
+        'KeySchema': [
+            {
+                'AttributeName': 'name', 'KeyType': 'HASH'
+            },
+            {
+                'AttributeName': 'date_created', 'KeyType': 'RANGE'
+            }
+        ],
+        'TableSizeBytes': 0
+    }
+}
+
diff --git a/pynamodb/tests/test_model.py b/pynamodb/tests/test_model.py
index 54d5d2a30..4627441ab 100644
--- a/pynamodb/tests/test_model.py
+++ b/pynamodb/tests/test_model.py
@@ -3,6 +3,7 @@
 """
 import copy
 import six
+from datetime import datetime
 from pynamodb.throttle import Throttle
 from pynamodb.connection.util import pythonic
 from pynamodb.connection.exceptions import TableError
@@ -17,13 +18,15 @@
     IncludeProjection, KeysOnlyProjection, Index
 )
 from pynamodb.attributes import (
-    UnicodeAttribute, NumberAttribute, BinaryAttribute,
+    UnicodeAttribute, NumberAttribute, BinaryAttribute, UTCDateTimeAttribute,
     UnicodeSetAttribute, NumberSetAttribute, BinarySetAttribute)
 from unittest import TestCase
 from .response import HttpOK, HttpBadRequest
 from .data import (
     MODEL_TABLE_DATA, GET_MODEL_ITEM_DATA, SIMPLE_MODEL_TABLE_DATA,
-    BATCH_GET_ITEMS, SIMPLE_BATCH_GET_ITEMS)
+    BATCH_GET_ITEMS, SIMPLE_BATCH_GET_ITEMS, COMPLEX_TABLE_DATA,
+    COMPLEX_ITEM_DATA
+)
 
 # Py2/3
 if six.PY3:
@@ -117,6 +120,15 @@ class UserModel(Model):
     callable_field = NumberAttribute(default=lambda: 42)
 
 
+class ComplexKeyModel(Model):
+    """
+    This model has a key that must be serialized/deserialized properly
+    """
+    table_name = 'ComplexKey'
+    name = UnicodeAttribute(hash_key=True)
+    date_created = UTCDateTimeAttribute(default=datetime.utcnow)
+
+
 class ModelTestCase(TestCase):
     """
     Tests for the models API
@@ -235,6 +247,18 @@ def test_refresh(self):
                 item.user_name,
                 GET_MODEL_ITEM_DATA.get(ITEM).get('user_name').get(STRING_SHORT))
 
+    def test_complex_key(self):
+        """
+        Model with complex key
+        """
+        with patch(PATCH_METHOD) as req:
+            req.return_value = HttpOK(), COMPLEX_TABLE_DATA
+            item = ComplexKeyModel('test')
+
+        with patch(PATCH_METHOD) as req:
+            req.return_value = HttpOK(COMPLEX_ITEM_DATA), COMPLEX_ITEM_DATA
+            item.refresh()
+
     def test_delete(self):
         """
         Model.delete